The text provided for this article is just the PC Gamer website's navigation, sign-up prompts, and menu boilerplate — the actual article body (about the Xbox backward-compatibility emulation stack) wasn't captured in what you pasted. I can't responsibly summarise content that isn't there, since I'd have to invent details.

Could you paste the actual article text (the paragraphs describing the emulator-within-an-emulator setup), or confirm you'd like me to fetch the URL directly?