Pokerstars VR is, by far, the game I play the most o my Oculus Quest. I have never had any problem with it.
However, lately, my mic just stopped working. I can hear everybody on the table, but they can't hear me even when I am unmuted.
I've seen some similar issues in this community, but they are all related to the oculus connected to a PC, and that is not my case. I always use my quest standalone; I don't even have a PC to try since I am a mac user.