for the love of god go to your steam settings -> game recording and disable h.265 encoding

for some reason h265 doesnt use hardware encoding, so it is pinning your shit HARD encoding your gameplay in the background; my cpu use dropped from 60-80% on all physical cores to like 30%

this is also a problem on windows but im only telling this to the linuxmaxxers because i dont want to provide service to the high cortisol low aura microslop populus