interestingly, the steam hardware and software survey currently shows all linux versions at only 1.87% - about 40% of which is from the steamdeck. wish more gamers knew how far gaming on linux has come. for the unaware, steam in particular has a compatibility layer called proton which runs most games very well. compatibility for specific games can be checked on
https://www.protondb.com/
thanks to progress on the linux-compatible anticheat softwares, the list of compatible games should continue to go up over time. that was the biggest issue for a while, now it's just up to the devs on if they want to allow it as an alternative to the windows-only anticheat software they package in their games.