This is a stupid point because almost everything you just said only benefits Linux users, which make up a fraction of Steam’s player base.
Outside of that fraction, the majority of windows users dont choose Steam for Proton which they cant use. It’s because Steam is better.
Ok I'm kinda annoyed by the constant do nothing and win talking point, they're winning because they ARE doing a great many things.
SteamOS, Proton layer, Steam Deck making PC handhelds more common, FEX layer for running Windows games on ARM architecture (and android)