Square button (open apps view) no longer working after update

I’m in the same boat, except I’m on Samsung Galaxy S9 and updated from R to S (Android 11 to 12), with Lawnchair 2 as my launcher.

I removed Bliss long years ago, but now I see BlissWeather in my app drawer and it had the location permission enabled?

Anyway, it’s not only the square button not working but the whole app switcher (Recents) functionality. There are two older threads about similar issues:

I installed KISS to have something to fall back to in case I need to reset/reinstall Lawnchair but the functionality doesn’t work through KISS, either, which leads me to believe that Bliss (or lack thereof) is the culprit.

Best course of action NOT INVOLVING FACTORY RESET or having my data wiped, anyone?