Xbox games are all VM images so im not it’s even sure it’s recompiled as much as emulated. All they are probably doing is ensuring compatibility . Dave Cutler said XBox is a variant of hyper-v.
Yep and each game comes with a weird windows os it runs the game with. XB360 was the power PC one so it has to do something to emulate it -- since hyperv doesn't emulate it may swap the OS or something
I guess it could still use the assets on the disk, in theory.