Some of us are more than willing to deal with rough edges to not be spied on and dicked around by Microsoft and other "black box" software. I've been using it on my personal desktop for 20 years just fine. There are enough open source PDF viewers now that I don't need Adobe's bloated horseshit, and LibreOffice opens MS Office shit just fine.

Proton for gaming is only getting better every day, not worse. You should have seen the scene in say, 2002. Where in 2023, 90% of them will run mostly fine, back then it was basically zero except for Quake and Unreal Tournament native ports.