Comment by scheeseman486

The person you're responding to wasn't entirely accurate, as it's not just a regular desktop session with the Xbox app set to auto launch. Early reports (admittedly from Microsoft PR) say the gamepad-centric window manager they're shipping on the Xbox ROG, a replacement for explorer.exe, shaves off 2GB of memory usage specifically because they're disabling desktop-centric services during the session. They do seem to be addressing a lot of your points.

The selling point is compatibility with anti-cheat and Game Pass. These aren't targeted for me, I'm not big into competitive shooters, I prefer a la carte and I main Linux, but I can imagine it would be for a lot of people.