[whizzter]

The blame is on the mobile vendors (and desktop platform vendors) just trying to "out-innovate" each other (also building propietary security/signing solutions) with their propietary stacks (SwiftUI/ObjC, Java/Kotlin, C#,etc) at the same time as there's been an explosion of apps/services that just needs basic functionality. The budgets/manpower isn't there to support everything... apart from if it's just a webview.

20 years ago a Windows program was enough (guess why Visual Basic was so popular?).

There's also a flip-side to the equation, the web-platform is damn capable thanks to the relentless pacing (both in features and JIT improvements in JS engines) after IE died off and catching up to it is becoming harder every day.

Looking today the only real choices for cross-platform dev seems to be: WebView, React Native (using Expo is a damn smooth experience almost to the level of webviews) and finally Xamarin/C#. (Yeah, I'm aware of Dart/Flutter but isn't it already long overdue to be killed by Google?)