I think the reason they keep trying new UI frameworks is that no one really adopts them. Developers know that Microsoft won’t kill off backward compatibility and break all the enterprise apps, so why rewrite? When one framework fails, they start working on the next one. I question if they understand the corner they’ve painted themselves into.

I stopped writing Windows applications back in the early 00s

my Windows API knowledge (essentially: just Win32) is still exactly as useful as it was then, having missed the 7 or 8 different UI frameworks in the interim