Surface more alt stores besides flathub

[danirabbit]

Problem

The concept of alt stores and flatpak remotes still seems to be a bit confusing, especially when we currently only suggest a single alt store

Proposal

We should show many alt stores to make it more clear that there is a variety of remotes to get apps from. Just briefly:

http://distribute.kde.org/kdeapps.flatpakrepo https://nightly.gnome.org/gnome-nightly.flatpakrepo https://flathub.org/repo/flathub.flatpakrepo

There is also a Fedora remote and one for OnePassword, but I'm having trouble finding the links to the repo files

Prior Art (Optional)

No response

[diogopessoa]

I find it a great idea to show other additional repository options!

I have been a user of elementary OS since 2012. I've always closely follow the development news and also the comments on YouTube channels and social networks, in the Portuguese language of Brazil (my native language) and in English. As an experienced elementary user, I see no difficulty adding Flathub or any other Flatpak repository with Sideload.

However, the reports I see from those who have never had contact with elementary OS when opening the AppCenter and not finding for example, a LibreOffice suite office or an internet browser like Firefox or Chrome, usually results in a feeling of frustration and does so give up taking a next step.

I would like to suggest the inclusion of Flathub activated by default, with option in Oboarding and AppCenter:

Onboarding design example:

AppCenter desing example: