It's been good for the average PC user for like 5 years. Pretty much when Google Docs became pretty ubiquitous from elementary school through university. Then also stuff like turbotax becoming something people use through a website rather than a application they buy a disc for from the store. Steam Deck was when Proton maturity reached a point where it became suitable for most gamers. Steam games on Android is the next mainstream frontier to pull users away from Windows. Now the main barrier to me is improving prosumer software/making open source alternatives competitive like how Blender became. Pretty much need people to get away from Adobe and FL Studio/etc