The native locked down options are the natives apps you're advocating for, I don't understand. They're the Swift/uikit or Koltin/jetpack apps. It sounds like you don't like web technology in general and would rather everyone do it the centralized Apple/Google way?
Kotlin is not native. And yes, I don't like web technology. That doesn't imply doing it in Company A / B / C way, it implies preference for compiled programs that run natively in their respective environments with full utilization of resources those environments provide, e.g. hardware access, software standards etc.
