Source is this video:
Windows Was The Problem All Along - Dave2D
We could obviously compare performance between windows and steamOS before on the steam deck, or between windows and Bazzite on other handhelds. But this is the first time we have had official windows and SteamOS builds for the same hardware.
I disagree. Take Windows, remove the bloat, slap a game-focused GUI on it, call it XBOX and Bob’s your uncle.
There are rumors they plan to do this with the first Xbox handheld.
If Xbox Series S would have run all my Steam games, I’d have bought one in a heartbeat.