Many distros nowadays have decent support forngaming accessories and a mix of Lutris and Steam/Proton have given me a near seemless experience on Linux. Smooth enough for my partner to hop ship to Bazzite for their ROG Ally.
Sometimes there are small quirks, like controllers on Bazzite just work™ but on Vanilla OS 2 my xbox controller wouldn't be recognized by Steam or games wirelessly (wired worked) but my DS5 controller worked flawlessly (including the trackpad that I never got to work on Windows).
Most of the Steam library will work well and ProtonDB is a great resource for compatibility. Furthermore there are Decky plugins for setups like Bazzite and Chimera that embed the ProtonDB rating into the Steam game page.
My partner and I were gratefully surprised when we bought a cheap Hisense for their cozy space (to isolate when overstimulated and just play some games) that in the setup it offers the option for a 'dumb TV' mode with no requirement for internet. In addition you can reject the user agreements and still use the TV. It boots straight to HDMI, no pop up ads, and is snappy.