There are many cumbersome things about the wagtail admin. Here are a few
Tags for images are pretty much useless because only the 20 most used are listed
Page chooser only displays 20 pages at once and you have to click "next" repetitively to progress through pagination (unless you inspect element like a weirdo)
It would be nice to sort authors based on most recent articles by default
This is the wagtail documentation https://docs.wagtail.org/en/stable/extending/generic_views.html
There are many cumbersome things about the wagtail admin. Here are a few