I was hoping for: "We understood the insanity and the insult of trying to replace native UI with cheap web stack imitation and it will never happen again".

Well, the article does say:

“More fluid and responsive app interactions: Reducing interaction latency by moving core Windows experiences to the WinUI3 framework.

* Improving the shared UI infrastructure that Windows experiences rely on, reducing interaction latency and overhead at the platform level

* Faster responsiveness in core Windows experiences like the Start menu, by moving more experiences to WinUI3”