A quick follow up to this:
Updating my drivers to 555.58.02 has fixed my crashing issues (on CS2)
Before updating, the game would crash with or without GSP enabled, but now I can play full matches without any VRAM related issues with GSP enabled.
I’ve noticed 555.58.02 has made it take longer before I get a Xwayland crash, but it still crashes as soon as my 3080 hits 9.8GiB/10GiB used. Can you try filling your VRAM and checking if it still crashes? I’ve done it by opening an intensive game and a youtube video on the background.