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?