WinRT was abandoned by Microsoft. They said the new hotness is now WinUI 3.
Well that was until late 2023. Then they realized nobody was writing pure Windows UI code in WinUI 3. (Probably because people were still playing catch up). So they have now have unofficially mothballed WinUI 3 and the new hotness is now MAUI - cross-platform UI! - in 2024. (But no Linux support ho-ho)
I hope Microsoft would settle for one UI library instead of pushing a new one every five years. WinUI 3 is their most recent invention. Application developers can't keep up with the changing standards.
With all the mismanagement around WinRT, only the Windows team themselves and companies with sunken cost into UWP looking into a migration path, still care about WinUI 3.
Look no further than the Github repos for the general sentiment.
A properly motivated Apple would have been pushing cross platform Swift/SwiftUI and launched an App Store on both Android and Windows.
Imagine how many developers would just release to the App Store and re-release that on Android/etc to not need two codebase, and Apple would expand their 30% cut massively.
A lot of Android users would get apps from Apple’s store due to vetting/generally higher investment in App Store apps from major companies.
Nope - that would be a massive undertaking. Someone tried reimplementing SwiftUI but it was abandoned quickly after realising how much work it would entail: https://github.com/Cosmo/OpenSwiftUI