Years ago, I saw a demo for a confidential gaming VM with the idea that games could ship with a whole VM instead of an anti cheat engine. Most of the tech was around doing it performantly. I wonder why it was never productized.
This was nice as a developer because we were not forced to patch our games when the overlay or underlying operating system of the console changed. In fact, On The Division 1 we shipped with a patched/modified version of the SDK- this wasn’t possible on Playstation.
Consequently, while the Xbox was marginally faster in a hardware sense, it was slower in reality. It even had the advantage of us using native rendering SDKs (Playstations OpenGL “with additions” was very much a bolted on second class citizen) and still we had higher quality and more consistency or our frame times on Playstation.
No free lunch.