Excellent project, many thanks to Marius and all others involved!
Priority 2:
-RCS: lacking RCS isn't a bug exactly. But where I live it's a missing part of core phone functionality at this point, especially when UT's MMS lacks Group Messages and (for me, across devices) has always missed some messages outright. This is the single biggest reason I haven't gotten anyone to switch to UT here in Canada. MMS/RCS is an expected baseline way to communicate in Canada and USA, and increasingly RCS is ubiquitous. It's a much bigger problem now that iOS and Android talk to each other smoothly, as people expect you've seen their message, and you don't know anything was sent.
But that's probably a big task, and I know this isn't a big issue in lots of the world.
Priority 3:
-Autocorrect: I may be in the minority, but I've always used autocorrect in UT. I've heard it dismissed in Q&As as not worth using, but it's really not that bad, and I think a lot of new users expect decent autocorrect. I wouldn't expect it to get to the level of android/iOS with context-dependent editing, but fixing a few bugs that I'm long since accustomed to would make the existing UT autocorrect pretty decent. Happy to chat in greater detail about specifics.
-Screen flicker during calls: on Oneplus 1, Oneplus 5, and Oneplus N10, 16.04 and 20.04, when on a phone call the screen will sort of flicker off and on, making it difficult to use anything else while on a call, and sometimes also hard to shut the screen off. I have not yet tried 24.04.
-GPS crashes/freezes navigation apps: this occurs in Morph, uNav, and Puremaps in different ways for different users. Most of us have some workaround, but it'd be a very nice bug (or set of bugs) to have fixed.
Priority 4:
-Notches and Rounded Corners
Priority 5:
-AGPS
-Backup/Restore: some native OS way to handle this, including backing up data from apps that store your work outside the normal home folder, like Recorder.
Thanks a million to the developers who're working on this. I really think this is exactly the sort of effort that could grow the userbase, which leads to more devs, more donations, and as such more progress in a positive feedback loop 