Yes this has been asked and answered a million times I’m sure. There is a plethora of ‘top ten distros for Linux gaming’ lists out there and the majority of posts I can find on That Other Site seem to devolve into “every distro can do games”.
I’m interested in what you are using and your experience doing so. Any gotchas you wished you knew? Anything you tried that didn’t work, or anything that worked unexpectedly well? What would you say if your friend asked this over a few pints down the pub?
Mint for my desktop, SteamOS on Deck. Both do what I need, and the only issues I’ve run into since switching have been random things like GOG not having an updated Planescape Torment build that works out of the box. I don’t play many online competitive games with like invasive anti-cheat stuff, so I haven’t run into a ton of compatibility issues.