List of tags/classes in Xaml?

Question

XAML

Hello!
Well, I already understood that a specific list of tags in Xaml does not exist. And yet, there must be some kind of guideline / standard, the elements of which classes can be created, well, that is. what tags can be used. Why say "Page" is "Page" and not "Sheet" or there "Folio"? And is there just "Box" and not "BoxView"? Where to take it?
Thanks

Answer 1

1. In XAML, tags are instances of classes from included namespaces.
2. Page, Button, ListView, etc. - class name.
3. Controls are well described and documented on the official websites of MS and Xamarin, there are a lot of examples on the github.