This is where my head always goes as someone who does mostly Asp.Net Core. Why is it always between something like C++ or something like Python? Nowadays with middleware and endpoint routing, asp.net core can be almost as simple as flask (even if that’s not idiomatic or what the docs show you).
Not really the same, but it at least is designed with the idea of providing UI components to cross platform frameworks (React.Native,Xamarin.Forms etc.) to make them look more windows native.
Yes. UWP already mostly uses WinUI 2.0 I think. 3.0 will expand the minds of applications that can make use of the component library and provide a way to gradually incorporate newer controls into older technologies (WinForms, WPF etc).
Are these what the book is based off of? Or are these just the credentials of the author? In the former case I would find that more compelling to be worth looking into than just the link to the amazon book. In any case, I wasn’t trying to specifically dismiss the book (which I have not read) but just pointing out that linking to book of that sort doesn’t give me (personally) the feeling that there is much weight behind the citation. The other links you provided do the opposite!