Can you give any arguments for "a paradigm SwiftUI itself isn’t based on", Appleloper had given us multiple slides directly from Apple, showing that the architecture Apple uses and has in mind with SwiftUI is not necessarily MVVM but something else.
Elm pattern is effectively model-view pattern but it doesn't specify other things like data flow(property wrappers like @ObservableObject, @Binding etc.), or navigation(wwdc22).
So it feels like Elm pattern is only part of broader "Apple pattern".