I think it may have been lib32-nvidia-utils? But I cant remember. If that didnt work left me know and ill look again.

Try turning off the steam overlay maybe? I also had to install a 32 bit graphics library for one game. Can’t remember which library though

It will be kept in its own container but I have noticed no significant changes to how play store apps work.

I use it on pixel 6a. I have encountered no problems, all apps have worked including games from google play store. Only exception is google wallet.

Edit: updates come over the air

Yes, the fewer people I have to trust with my data the better.