In fact, I learned iOS app development using Swift & Xcode just to not work with React Native anymore.
It felt to me like I was fighting with the framework every step of the way, swift on the other hand is an absolute joy to work with.
Cross platform tools can get you really close but you'll be spending a non-trivial of your time tinkering/tweaking shared code to fix or create different issues on different platforms. That's time that takes away from creating a great user experience on a single platform.
That's not to say Cross-platform tech is all bad. Just that you have to be aware of the tradeoff that you won't be able to 'give it your all' towards the best user experience on a single platform.
PS - the one tech stack that gets you really close from all the ones I've tried (Mono, C++, hybrid web apps, RN) is Unity. But that's for an entirely different use case than apps :)
The reality I’ve seen, developing both hybrid and native, is that native has the faster time-to-market because all of native stuff (debugger, GUI builder, etc) works out of the box and all the time saved by a shared codebase is eaten up with tweaking the shared code, having to do stupid JavaScript tricks, and dealing with all the bullshit of the web that hybrid development brings into your app.