This feels like an opportunity for Microsoft to start finally cutting out legacy cruft. Guarantee a 100% pre-Windows 12 seamless emulation layer. Once that is established, it becomes more possible to port to ARM, RISC, or make foundational breaking API changes that have been desired for decades.
That was the plan for Windows 10X, this would’ve been used as a Win32 compatibility layer. But that plan was killed (hardware compatibility?) and the UI was ported to regular Windows 10 to make Windows 11.