I mean we have tons of anticheat games working on Linux. More than people realize. Elden Ring, The Finals, Overwatch 2, CS2, Apex Legends, xDefiant and more that I can’t remember right now. It’s not that bad even as a multiplayer gamer. The ones that don’t work R6S, Val, LoL, Fortnite, CoD and Destiny pretty much.
Ubuntu sucks ass. Use Bazzite.