A bit off topic, but I have been using Arch for over a decade now, and it has been pretty stable for me. My only issue in last few years were if my kernel got updated which needed updated nvidia driver, and I rebooted before noticing that. (Very old laptop, so nvidia drivers for this aren’t in repos, hence the issue). I didn’t use it for gaming though (very old laptop, wouldn’t even run old games)
BTW I recently went the opposite way, have been using only Linux for over a decade but got a new laptop a month back and kept the windows as a dual boot, though my main interest is to use it only for MS/Xbox first party games, that don’t have Linux support. Saving me from buying a separate Xbox.
No idea tbh. I mainly play on consoles, and until a few days back I didn’t even know Xbox publishes game on Steam too. Will have to check protondb. Will take a look.