I’ve used a 360 emulator and I think there’s a xbone emulator but definitely not series. Perhaps they have their own in-house one. I think they’ve basically been using PC hardware forever though, and the Xbox OS is basically stripped down windows so this doesn’t seem like a huge jump. As I recall PlayStation OS is basically BSD, too, which is both sweet and not for various reasons. Exclusives are dead anyway and consoles often get sold at a loss to move games, I’d argue that all consoles should just be PCs.