You’ll see that they still get a lot of use in the interfaces of non deprecated APIs (eg WPF).
If you compare WinRT with the the original design from Ext-VOS (COM+ Runtime) before it became the CLR, you will find quite a few similarities.
To be honest, it feels like Microsoft's UI strategy these days is either UWP for the store or just use the web.
> Microsoft's UI strategy
at the moment I really think that they do not have a strategy. I mean they even have Xamarin.Forms which is another XAML variant.
which ups their UI stuff to 4. I do not see any of them being deprecated at all.
https://docs.microsoft.com/en-us/windows/desktop/api/roparam...
Thanks for clarifying it.