My friends are understanding that I don't play games with rootkit anti cheat (whether on Linux or Windows). There are enough games that we can play other games together still, and when they want to play the games with such anti-cheat (e.g. Helldivers 2) they simply play without me. No big deal.

i've read helldivers2 kernel component only runs on a normal windows install, you should be able to play on linix via wine/proton without any of that