I think SwiftUI was a waste of genuine effort that Apple could have put toward making their existing component model easier to work with. Things like adding stylesheets or simplifying layout constraints, or just adding @State binding to existing components. SwiftUI tries to look like react but really it's just normal databinding+restricted access to the direct component tree.

SwiftUI is so much better than what came before it it’s a joke. Minus many bugs and missing features, SwiftUI is the best thing that’s come out of Apple’s dev work maybe ever.