> how immature all these “native” things still are when you step outside simple screens

Well yeah. If people don't invest sufficient effort in a thing why would there be an expectation for that thing to become mature? People are locked into web tech because that's where the greater majority of the effort has been going. Quite literally people look at native, say it isn't developed enough, and go develop for the web even more. Cycle repeats. Hardly anyone wants to put in the effort to improve native when things already "just work" for the browser.