One UI 7 has been disastrous for me, and not just because of preferences or layout. So far, I consistently get one or more of three issues:

1. Home button (the round square at the bottom) ceasing to function. Seems to happen when I open any app, only actually triggers the moment I tap on the three lines next to it to bring up the open applications screen.

2. Swiping up from home screen doesn't bring up the app list. Seems to occur whenever I press the home button from the application card screen (pressing the 3 lines button). Only consistent workaround is to go to settings and press home key (which behaves as expected).

3. Lock screen showing what is basically a screenshot of my home screen as a wallpaper, despite having an actual wallpaper. Seems to occur whenever I tap the power button with an app open, but it's inconsistent. I don't have a workaround for this, it just stops doing that randomly it seems.

these occur very frequently; I'm fighting the UI every time i want to do something. besides that, I've had other issues too; mostly minor issues (visual glitches), but one big one. Earlier today, my phone only displayed the wall paper on my home screen and nothing else; no UI elements at all. Holding down the power button brought up the power options menu (manually adjusted that setting before this occurred), but tapping any of the power options did absolutely nothing. I wasn't even able to reboot or turn off my phone, only thing that shook it out of this siezed up state was tapping the side button settings bar at the bottom of the power options screen.

This has been the buggiest mess of a UI I've ever had the displeasure of using, and that's putting aside a few of my grievances with the aesthetic changes they made to it.

For reference, I'm on a (admittedly beat up) galaxy s21FE, and I do have F-droid installed but the phone is not rooted.