I've been trying to do more Circle reviews lately, and I've noticed that a lot of apps have very similar papercuts. Some of the classics are:
- Not using the standard keyboard shortcuts (e.g. Ctrl+, for opening preferences) https://developer.gnome.org/hig/reference/keyboard.html
- Missing a11y labels on buttons
- Longer blocks of text not being screen reader accessible
- Focus borders being weirdly shaped/glitchy
Maybe having a little checklist for app devs to do themselves before applying could catch some of these?