No reason why it wouldn't be second or even lower class. That walled garden OS is slightly better than Windows but Linux (mainly arch, debian based) is way ahea

No reason why it wouldn't be second or even lower class. That walled garden OS is slightly better than Windows but Linux (mainly arch, debian based) is way ahead in every way Proton is absolutely amazing and everything has worked for me, some older badly made games haven't had ideal performance but with latest Proton even some of them have improved massively. Going from ~120 to stable locked 500FPS as expected. Soon, if not yet, the games will run better with Proton on Linux than natively on Windows, at least with AMD.