Dead is perhaps overstating things, but I think Xamarin is problematic for new development because it hasn't kept up with the latest movement in the iOS ecosyst

Dead is perhaps overstating things, but I think Xamarin is problematic for new development because it hasn't kept up with the latest movement in the iOS ecosystem. Looking at their issue tracker, it seems watchOS development is a nightmare, there's no support for catalyst, and there's no support for WidgetKit. Widgets are very hot right now, so that was disappointing. It used to be that if you could make an app for iOS with Swift, you could make it with Xamarin. That guarantee is no longer there.