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Investigate creating an accessible custom select/dropdown component #16473

Closed tellthemachines closed 3 years ago

tellthemachines commented 5 years ago

Is your feature request related to a problem? Please describe.

HTML select elements are not visually customisable, and in some circumstances we need to customise the options in a dropdown. When showing available text styles, for example:

Screen Shot 2019-07-09 at 2 09 38 pm

We also need these dropdowns to be fully accessible when used with keyboard, screen readers, voice commands, and any assistive technology.

Describe the solution you'd like

Investigate how to best achieve full accessibility while using non-semantic markup, with ARIA and custom keyboard interaction. Previous discussion for reference: https://github.com/WordPress/gutenberg/pull/16148

Deque's custom select might be a good solution: https://pattern-library.dequelabs.com/components/selects

React-select is another possibility; there's ongoing work/discussion on accessibility improvements over there: https://github.com/JedWatson/react-select/issues/2456

noisysocks commented 5 years ago

cc. @epiqueras who I think was looking into this a little.

epiqueras commented 5 years ago

It's @enriquesanchez πŸ˜†

enriquesanchez commented 5 years ago

I tested both Deque's custom select and React-select on Mac (Safari + VoiceOver) and Windows (Firefox + NVDA).

Deque's custom select worked like charm in both cases. React-select did not work well for me, I had trouble getting the screen reader to properly read aloud the available options.

My vote goes for moving forward with Deque's custom select, I think it would allow us to have custom styling on dropdowns (for font selection, text size, etc.) like we used to while also being accessible.

57712309-03e57300-7679-11e9-95a2-e9f36eb31ba2

I'm adding the 'Needs Accessibility Feedback' label in order to get more eyes from the a11y team and see what they think.

epiqueras commented 5 years ago

The discussions in #16666, are relevant here.

...a single input component when there are other lightweight alternatives that could power the accessibility foundations of any input type.

I would start by looking at https://ui.reach.tech or https://github.com/downshift-js/downshift if we need a lower level API.

afercia commented 5 years ago

The discussions in #16666, are relevant here.

On #16666 what's being discussed is an "autocompleter", which is a bit different from a select replacement. I've commented there, see https://github.com/WordPress/gutenberg/pull/16666#issuecomment-518795243

in some circumstances we need to customise the options in a dropdown

Assuming Gutenberg really needs a <select> replacement:

In the last 5 years the accessibility team tested various select-replacement libraries. Most of them are not accessible:

Here's the Select2 accessibility testing and evaluation the a11y team posted on September 2015: https://make.wordpress.org/accessibility/2015/09/07/accessibility-usertest-select2/

See also https://github.com/WordPress/gutenberg/pull/5921#issuecomment-391652557 (24 May 2018)

Since then, some new select replacement like SelectWoo and react-select improved some of the accessibility issues but they're still not fully accessible.

https://github.com/WordPress/gutenberg/pull/5921#issuecomment-377903088 (2 Apr 2018)

From an accessibility perspective, react-select is not so different from Select2. Unfortunately, it is not accessible.

Both Select2 and react-select have accessibility-related open issues and some work is (slowly) being done. As of today, they're still not accessible.

The Deque custom select looks promising and maybe it would be a nice opportunity to collaborate with Deque to refine some details.

Finally, looks like some W3C folks are considering to standardise and make fully styleable the native <select> element and other form controls: https://twitter.com/gregwhitworth/status/1150771325075542016

The proposal is included in the Web Incubator Community Group (WICG) and it's in an investigation phase. [Edit] This link is dead, please refer to https://github.com/WICG/open-ui and https://open-ui.org/

epiqueras commented 5 years ago

Accesible autocompleters/comboboxes and dropdowns/selects usually share a lot of code.

That’s why I proposed 2 of the most popular libraries for easily implementing accessible inputs to power all of them.

On Tue, Aug 6, 2019 at 7:13 PM Andrea Fercia notifications@github.com wrote:

The discussions in #16666 https://github.com/WordPress/gutenberg/pull/16666, are relevant here.

On #16666 https://github.com/WordPress/gutenberg/pull/16666 what's being discussed is an "autocompleter", which is a bit different from a select replacement. I've commented there, see #16666 (comment) https://github.com/WordPress/gutenberg/pull/16666#issuecomment-518795243

in some circumstances we need to customise the options in a dropdown

Assuming Gutenberg really needs a element and other form controls: https://twitter.com/gregwhitworth/status/1150771325075542016

The proposal is included in the Web Incubator Community Group (WICG) https://github.com/WICG and it's in an investigation phase https://github.com/WICG/form-controls-components/blob/master/select/overview.md .

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tellthemachines commented 5 years ago

Accesible autocompleters/comboboxes and dropdowns/selects usually share a lot of code.

Selects and autocompletes may look a bit similar, but their purpose is quite different: select presents you with a limited list of choices from which you can select one or more options; autocomplete is essentially a search type input with a bit of added functionality. Here's a really good talk about what it takes to build an accessible autocomplete: https://www.youtube.com/watch?v=_w6KvvN9cWw (spoiler: it's anything but easy πŸ˜„)

My take on this is that it's better to have two solid single-purpose components than one bloated one that tries to do everything at once. There may be utility functions, e.g. for keyboard navigation, that we can share between components, but they shouldn't have much more in common than that.

epiqueras commented 5 years ago

Comboboxes are dropdowns with dynamic options derived from a text input.

Take a look at the code for the libraries I suggested, Reach and Downshift.

On Tue, Aug 6, 2019 at 8:45 PM tellthemachines notifications@github.com wrote:

Accesible autocompleters/comboboxes and dropdowns/selects usually share a lot of code.

Selects and autocompletes may look a bit similar, but their purpose is quite different: select presents you with a limited list of choices from which you can select one or more options; autocomplete is essentially a search type input with a bit of added functionality. Here's a really good talk about what it takes to build an accessible autocomplete: https://www.youtube.com/watch?v=_w6KvvN9cWw (spoiler: it's anything but easy πŸ˜„)

My take on this is that it's better to have two solid single-purpose components than one bloated one that tries to do everything at once. There may be utility functions, e.g. for keyboard navigation, that we can share between components, but they shouldn't have much more in common than that.

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tellthemachines commented 5 years ago

Comboboxes are dropdowns with dynamic options derived from a text input

Comboboxes are input elements where a dropdown with options is rendered based on what you type in the input. Because they are search type inputs, they need to have a reset button and a search button too. Selects are not inputs. You can't type into them, though you can use your keyboard to pick a specific option. When you click or press space on the select, all the available options are presented in a dropdown. There's good reason for there to be a specific HTML element dedicated to them πŸ™‚

Take a look at the code for the libraries I suggested, Reach and Downshift.

Reach UI is not production ready. They don't have a select component, and their combobox example is broken: typing in any letter brings up the whole list, which is not expected behaviour. For reference, here are some examples of how comboboxes are supposed to work: https://www.w3.org/TR/wai-aria-practices/examples/combobox/aria1.1pattern/listbox-combo.html

According to discussion here we've already tried downshift and it wasn't accessible enough. Given that they have an open issue from Nov 2018 to look into accessibility issues, it doesn't look like they are making much progress in that area.

epiqueras commented 5 years ago

So how is this going to move forward? Have you tried Deque’s select which the other Enrique recommended?

On Tue, Aug 6, 2019 at 9:35 PM tellthemachines notifications@github.com wrote:

Comboboxes are dropdowns with dynamic options derived from a text input

Comboboxes are input elements where a dropdown with options is rendered based on what you type in the input. Because they are search type inputs, they need to have a reset button and a search button too. Selects are not inputs. You can't type into them, though you can use your keyboard to pick a specific option. When you click or press space on the select, all the available options are presented in a dropdown. There's good reason for there to be a specific HTML element dedicated to them πŸ™‚

Take a look at the code for the libraries I suggested, Reach and Downshift.

Reach UI is not production ready. They don't have a select component, and their combobox example is broken: typing in any letter brings up the whole list, which is not expected behaviour. For reference, here are some examples of how comboboxes are supposed to work: https://www.w3.org/TR/wai-aria-practices/examples/combobox/aria1.1pattern/listbox-combo.html

According to discussion here https://github.com/WordPress/gutenberg/pull/16666#issuecomment-515459792 we've already tried downshift and it wasn't accessible enough. Given that they have an open issue from Nov 2018 https://github.com/downshift-js/downshift/issues/617 to look into accessibility issues, it doesn't look like they are making much progress in that area.

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afercia commented 5 years ago

Procedural note πŸ™‚Please avoid to quote the whole previous comment when replying. While the GitHub UI hides the previous comment, the notification emails show both the reply and the previous comment. Reading through all that quoted text is a terrible experience. Thank you!

epiqueras commented 5 years ago

I don't add it. It's the GitHub reply to email flow that does it.

enriquesanchez commented 5 years ago

Thanks for reviewing this @afercia!

collaborate with Deque to refine some details

I'm curious to know if you found any issues with Deque's implementation? I know you had some initial observations on #16148.

afercia commented 5 years ago

@enriquesanchez thank you for reviewing and for the ping on Slack!

Testing the two selects on https://pattern-library.dequelabs.com/components/selects with screen readers on Windows, here's some random observations compared to native behavior:

native <select> elements:

the Deque select:

To me, the most important issues are:

All of this demonstrates that, even if well thought and coded:

β€œThe thing is, non-native controls never fully match native element behavior.” https://twitter.com/ewaccess/status/1157339317142007808

That said, screen readers are just one assistive technology πŸ™‚I'd like to see the Deque select tested at least with a couple more assistive technologies:

afercia commented 5 years ago

Couple screenshots:

Native <select> With Firefox + NVDA:

Screenshot (15)

Deque select With Firefox + NVDA:

Screenshot (14)

enriquesanchez commented 5 years ago

@afercia thanks for the thorough review!

To summarize, a custom select should:

  1. announce its role as combobox
  2. annonce expanded/collapsed state
  3. switch to forms mode
  4. change the options even when the select closed (Windows)
  5. announce the option value and their position (n of n)

Would this be a reasonable list of requirements for any custom select to be considered?

afercia commented 5 years ago

@enriquesanchez yes that would be great.

announce its role as combobox

This one is a bit tricky. Browsers (at least Chrome and Firefox) expose a native <select> element with a role combobox, hence screen readers announce it as a combobox. However, the ARIA role combobox has a different meaning (and different expected interaction). Unsure what to do.

silviuaavram commented 5 years ago

Have you tried useSelect() from https://github.com/silviuavram/downshift-hooks ?

enriquesanchez commented 5 years ago

Hey @silviuavram! Thanks for the suggestion. I ran a quick test with useSelect():

On Safari + VoiceOver (Mac):

❌ announce its role as combobox
❌ announce expanded/collapsed state β€” announces collapsed but not expanded
βœ… switch to forms mode β€” VO recognizes it as a form element ~change the options even when the select is closed (Windows)~ βœ… announce the option value and their position (n of n)

Firefox + NVDA (Windows):

❌ announce its role as combobox βœ… announce expanded/collapsed state βœ… switch to forms mode ❌ change the options even when the select is closed (Windows) βœ… announce the option value and their position (n of n)

Also, and while this may be only a styling issue, the element looks like a button instead of a select element.

silviuaavram commented 5 years ago

Thank you @enriquesanchez for the feedback. I'd be happy to follow up on your points. I plan to merge useSelect in Downshift soon, so I am interested in making it ready for production. https://github.com/downshift-js/downshift

For combobox I am not sure if that is expected. If we are talking about the select widget, then that is different from the combobox one. The combobox always involves an input instead of a button, as it is the case for the select.

For expanded I don't think it's possible to announce expanded state (maybe with Virtual Cursor while the menu is open). By default, normal focus moves to the list after it is open.

For changing the options when the select is closed, I am not sure what you mean. Is this a select feature as well, can you describe it?

You are responsible with the styling, so it is up to you how you do it. But for a select, usually the trigger for the menu is a button. On VoiceOver it is announced as Pop-up button.

Maybe we can sync more on requirements and also if you can provide an example with a fully working widget, anywhere on the internet, maybe that will be helpful as well.

All the best!

enriquesanchez commented 5 years ago

Hey @silviuavram!

For combobox I am not sure if that is expected

On Windows, a native select element is announced by screen readers as a combobox. On Mac, it's announced as a popup button

For expanded I don't think it's possible to announce expanded state

I believe it's possible with aria-expanded.

For changing the options when the select is closed, I am not sure what you mean

This is an option available on Windows. You don't need to expand the list of options in order to scroll through the list.

enriquesanchez commented 5 years ago

@ItsJonQ has been helping me with the implementation of a custom dropdown/select that covers most of the requirements laid out on this issue.

While there are still some rough edges, we want to hear your feedback. I've been testing it with NVDA+Firefox on Windows and VoiceOver+Safari on Mac and would like to hear from others.

The custom dropdown/select can be found on this Codesandbox: https://2gbb9.csb.app

cc. @afercia

danielweck commented 5 years ago

@enriquesanchez that's a great start, thanks! :) The visuals could be improved, but the fundamental interaction requirements seem well-implemented.

I spotted one bug: when using the up/down arrow keys inside the popup "menu" to select an option from the list of predefined choices, the HTML page scrolls up/down. Missing preventDefault()? The space bar seems to be handled correctly, as it can be used as an alternative to the enter key, and does not trigger up/down scrolling.

danielweck commented 5 years ago

Apple MacOS, Voice Over, Google Chrome web browser:

silviuaavram commented 5 years ago

If implementing it from the ground up is what you wish, sure, go ahead. useSelect just makes it easier, you don't have to do any coding and it can be customisable as well. For instance, if you really want to add role="combobox" and aria-expanded="false" then you are welcome to add it and still get the rest of the hook's functionality.

I did not add those by default because I follow the W3C design pattern for it, and their specs are different.

enriquesanchez commented 5 years ago

Thanks for the feedback @danielweck!

We'll make sure to look into the issues you raised.

audrasjb commented 5 years ago

@enriquesanchez When using keyboard validation, I noticed you have to use esc to close the select. In a native select element, it closes directly when you select an item. I think it would be better to at least reproduce the native behavior :)

ItsJonQ commented 5 years ago

@audrasjb Thanks for the suggestion! I made that update :)

https://tqujb.csb.app/

bemdesign-er commented 5 years ago

Accessibility Testing:

WAVE and AXE automated testing - make sure form/control elements have a label (even if it's visually hidden).

JAWS - Hard to figure out if this is an issue with the version of JAWS I have but it does not identify the selected option so the user is never sure what they selected . Also the available options were not announced. It was never clear what I was accessing or what I could do with it.

The regular HTML select was, not surprisingly, the most accessible and usable in my testing.

I wonder if this might work better as a button that reveals/hides a panel with a radio button list of options inside?

bemdesign-er commented 5 years ago

oops! double post!

afercia commented 5 years ago

For changing the options when the select is closed, I am not sure what you mean. Is this a select feature as well, can you describe it?

@silviuavram for what is worth, this WordPress Trac ticket https://core.trac.wordpress.org/ticket/40925 and this short video attached to the ticket https://cloudup.com/iuFxQ7CkA7k may help to understand how on Windows the <select> options can be changed even when the select is closed. That's a standard behavior on Windows.

enriquesanchez commented 5 years ago

Thanks @audrasjb and @bemdesign-er for your help testing the component and your feedback.

afercia commented 5 years ago

I'd like to post some testing results, split in comments for each main topic. Before that, please allow me to make some preliminary, important, remarks.

As discussed on Slack, the prevalent opinion in the Accessibility team is to recommend to use a native <select> element. For the many reasons explained on the Slack discussion and on the WPCampus report.

Aslo, as mentioned in a previous comment, some W3C folks are considering to standardise form controls and components to be able (amongst other things) to fully style native <select> elements.

The proposal is included in the Web Incubator Community Group (WICG) and it's in an investigation phase. Ongoing discussion is taking place on the WICG Discourse.

Worth noting that on Windows modern browsers the <select> options can already be styled, to some extent:

select options styled

(selects style-ability exploration by Mason Freed)

Personally, I do believe WordPress is today in a position to participate in the W3C discussion and positively influence the process. I'd like to suggest to the project leads to take into consideration this option, as it seems the best way to improve the web for everyone (a little step at a time).

That said, the Accessibility team aims for a constructive spirit of collaboration across teams and is willing to explore and test all the available options as much as it can.

afercia commented 5 years ago

Basic keyboard interaction on native <select> elements.

  1. keyboard interaction to open a select: how a select opens on different operating systems
  2. keyboard interaction to navigate through the select options: does arrowing loop through the options?

macOS steps:

Chrome doesn't loop through the options Firefox doesn't loop Safari doesn't loop Opera doesn't loop Safari + VoiceOver do loop (this seems specific to VoiceOver)

Windows first test steps:

Chrome doesn't loop Firefox doesn't loop Edge doesn't loop Internet Explorer 11 doesn't loop Opera doesn't loop Even when using screen readers, there's no loop

Windows second test steps:

Same as above: none of the tested browsers loop through the options

Note: can't test IE11 on the React APP page because of JS errors (see screenshot below) so I've tested it on this page: http://testingwceu2019.altervista.org/wp-content/uploads/2019/08/native-select.htm. Of course, the custom select component should work also with IE 11.

custom select IE errors

Conclusions

These native behaviors need to be replicated in the custom component because that's the keyboard interaction users expect.

On Windows:

On macOS:

On all OSes:

afercia commented 5 years ago

Note: adding one more option with text "None" to the prototype on https://tqujb.csb.app/ would help testing what happens when typing to select options. The purpose is to have some options that start with the same letters. This addition would be greatly appreciated, when you have a chance πŸ™‚

afercia commented 5 years ago

Type to search and select options (Type-ahead )

On all tested browsers on macOS and Windows, typing the first letters of an option selects the related options. There are minor differences in browsers behaviors but this works everywhere even on IE 11 and a select replacement needs to replicate this native feature as that's the interaction users expect.

Works whether the select is open or closed. Worth also noting that in this scenario the select stays closed also on macOS.

Testing on http://testingwceu2019.altervista.org/wp-content/uploads/2019/08/native-select.htm

Press the n key Note: Chrome macOS seems to be a bit slow/buggy and sometimes there's the need to press the n key twice Note 2: allow for a brief interval between consecutive key presses.

Type more than one character

Repeat the steps above this time opening the select with the Spacebar key first. Basically, the type-ahead behavior is the same as above.

This feature is missing from the current prototype implementation and needs to be added. Basic (non-React) sample core available on the Aria Authoring Practices example: https://www.w3.org/TR/wai-aria-practices-1.1/examples/listbox/listbox-collapsible.html

silviuaavram commented 5 years ago

https://codesandbox.io/s/wordpress-components-dropdown-font-size-picker-uey82

https://uey82.csb.app/

Hello everyone and thank you for your feedback. I released an alpha of downshift with the useSelect hook and created the codesandbox above for testing the Font Picker.

  1. I added as default behavior the selection with the dropdown close, on any character key. Typing n for instance should select Normal then None without opening the menu.
  2. The Windows behavior (selecting with dropdown closed on ArrowDown and ArrowUp) was added by using stateReducer, the way Downshift allows the user to make changes to state before they are actually set. We may add this behavior inside the hook with a parameter, but for now having it in stateReducer is good enough.
  3. Added combobox role to button, by passing it as param to getToggleButtonProps. I really don't agree with it but if that is your requirement then it is possible to add it easily.

I replaced NavigableMenu with ul since that component has some weird behavior on keyDowns. It echoes these events or something, I don't know.

Since the useSelect is still in alpha you can view its Readme here (Pull Request).

At the moment only tested it on MacOS with Chrome, but tomorrow will use other combinations as well. Afterwards will work on getting this PR into the master repo and release a stable version with it.

Try it out and let me know if it works for your scenarios. I will gladly help out with info about the hook functionality or use/code. Good luck!

enriquesanchez commented 5 years ago

Hey @silviuavram! πŸ‘‹

I just ran some tests with both VoiceOver and NVDA and it worked really well! Current state, expanded/collapsed, available and selected options are all announced as I was expecting. Keyboard interaction was also as expected πŸŽ‰

I however was not able to interact with it with Dragon Speech. I believe this is because the button is using aria-labelledby and that has weak support with speech recognition apps. According to my tests, if we use aria-label instead, then Dragon Speech can interact with it. I was expecting to be able to say 'Click "Font Size"' and have the menu button expand.

Once I tried this change I was able to expand the menu.

Once expanded though, I wasn't able to select an option. If I said 'Click "Huge"' for example, the popover will collapse and no change would be registered. This one I'm not sure why is happening. Any clues why?

If we can fix that issue with speech recognition, then I think this component would be in great shape.

mapk commented 5 years ago

Really great testing, @enriquesanchez! Thanks!

While waiting to hear from @silviuavram, can we create a PR with Downshift and make the aria label change ourselves?

cc @enriquesanchez @epiqueras

silviuaavram commented 5 years ago

That is awesome @enriquesanchez thank you for the feedback!

I will get back to this next week as I'm feeling under the weather now.

But yes, you can create the PR. you can remove aria-labelledBy by passing it as undefined to the getToggleButtonProps and passing aria-label instead. Just make sure to do it also in the getMenuProps, that's labelled by the Label as well.

Also make sure you use latest Downshift (3.3.4). Good luck and leave comments here I will address them once I will feel better.

epiqueras commented 5 years ago

@silviuavram Thanks for all the work here! We're experimenting with this fork: https://codesandbox.io/s/wordpress-components-dropdown-font-size-picker-bwvf2

I however was not able to interact with it with Dragon Speech. I believe this is because the button is using aria-labelledby and that has weak support with speech recognition apps. According to my tests, if we use aria-label instead, then Dragon Speech can interact with it. I was expecting to be able to say 'Click "Font Size"' and have the menu button expand.

This is fixed.

Once expanded though, I wasn't able to select an option. If I said 'Click "Huge"' for example, the popover will collapse and no change would be registered. This one I'm not sure why is happening. Any clues why?

This is still an issue.

Do you have any idea what it might be?

silviuaavram commented 5 years ago

Added a couple of suggestions in the PR @epiqueras

spacedmonkey commented 5 years ago

Flagging https://github.com/WordPress/gutenberg/pull/16666 and https://github.com/WordPress/gutenberg/pull/7385 as related here, as they go a different direction with an accessible select menu as they use accessible-autocomplete package.

Looping in @adamsilverstein as he worked on those PRs.

silviuaavram commented 5 years ago

@epiqueras I don't own a license of Dragon Speech (and not really sure if I can get a trial and for which product). Hopefully you can find the issue by stateReducer (the console.log suggestion) and if you need more help let me know!

epiqueras commented 5 years ago

@silviuavram Me neither, and it's Windows only :cry:

Is there anyone on this thread available for pair programming? :smile:

epiqueras commented 5 years ago

Is there anyone on this thread available for pair programming? πŸ˜„

With Dragon Home/Speech.*

afercia commented 5 years ago

@grahamarmfield and @ewaccess might be able to help with Dragon, if they have a chance πŸ™‚ They would need a testable page though, not something they need to set up, install pagkaces, etc.

epiqueras commented 5 years ago

https://5da7768a4c94a8000b7c6a4e--gutenberg-playground.netlify.com/design-system/components/?path=/story/customselect--default

The debug info shows in the console.

tellthemachines commented 5 years ago

Is there anyone on this thread available for pair programming? πŸ˜„

With Dragon Home/Speech.*

@enriquesanchez did some testing with Dragon on #17418 which was our previous attempt at this.

afercia commented 4 years ago

Looks like the custom select component merged in https://github.com/WordPress/gutenberg/pull/17926 misses a few basic things to be considered a working replacement for some basic (not all) features of a native <select> element.

Most importantly, the currently selected value is not exposed programmatically so any software including screen readers won't be able to understand what the currently selected option is.

Screenshot 2019-12-03 at 17 49 00

This happens because the button is labelled (actually it's labelled twice) so the label value overrides the button content:

Screenshot 2019-12-03 at 17 50 39

Both the <label> element and the aria-label attribute give the button an accessible name that overrides its content. The button content represents the set value but can't be read out.

Inspecting the accessible properties with Firefox, the relevant difference is that this custom component ha an accessible name but no value:

Screenshot 2019-12-03 at 17 59 34

while a native <select> element has also a value:

Screenshot 2019-12-03 at 17 58 35

Note also the role is different, which may be confusing for users.

At the very least there's the need to:

  1. find a way to make the set value announced
    • maybe aria-describedby could be explored for this purpose
  2. remove the aria-label as there's already a visible associated <label> element
    • aria-label is redundant, unless there's a good reason to keep it I can't think of

Worth also mentioning that native <select> element interaction greatly varies across operating systems and browsers as mentioned in previous comments. Users are used to these interaction models and a select-replacement component simply can't replicate them all. This further increases the chances for potential confusion and unexpected interaction. Personally, I still don't see a good reason to have a custom component only for the sake of a visual preview of the font size, at the cost of losing many of the native features of a native HTML <select>.

Reopening to address the two points above. I'd also like this issue and the implementation from https://github.com/WordPress/gutenberg/pull/17926 to be discussed in the next accessibility team meeting.