there’s a lot of stuff you can do, and you can end up with something usable, though not great, at least not in my experience. NVidia’s drivers are to blame, they don’t really work well with opengl and have lots of issues (and also regressions).
The 550 beta driver is ok-ish, steam flickers but I can play games. Drivers before 535 also somewhat worked, though it really depends on your GPU.
But I don’t think you will have it working acceptably without some work.
Here’s some pointers on stuff to try:
check protondb for how other people got games to work, you can filter by your GPU.
try running through gamescope or gamemoderun
try the modeset=1 (and maybe fbdev) kernel parameters for nvidia drm
and there’s tons of env vars and other things that can help, I couldn’t summarize them all here, but as a pointer: XWAYLAND_NO_GLAMOR=1, WLR_RENDERER=vulkan, LIBVA_DRIVER_NAME=nvidia, GBM_BACKEND=nvidia-drm (for the drm above), __GLX_VENDOR_LIBRARY_NAME=nvidia
try the beta drivers, if those are available somehow (I’m on arch so they were easy to install), or just different driver versions in general.
The above is meant more as hints than something to copy paste, so use at your own risk. You can of course always just install a second DE with X11 and log into that for gaming and use your regular DE for everything else