If you would initiate a Swift app or any other for type of app for that matter, what language/frameworks give you a complete solution with state etc done for you.
I guess I’m asking; what other solution have you found that solves everything for you?
If you want to build an iOS app with Swift, the built-in frameworks give you everything you need. Swift as a language, Cocoa Touch (includes Foundation as a kind of standard library and UIKit or SwiftUI for the UI stuff), Xcode for the IDE and build system. There's one source of documentation, Apple, and there's years of third-party documentation all over the internet.
You can bring in libraries of course, but even for a large iOS project it's unlikely (and probably unnecessary) to have more than a handful.
My point wasn't from someone who expects the language/environment to "solve everything".
It was from someone familiar with GUI programming, who wants to try doing it in React Native and suddenly finds tons of new concepts to keep in mind (compared to common native GUI frameworks/libs).
I guess I’m asking; what other solution have you found that solves everything for you?