Sounds like you sort of agree, given you agree with my back office caveat. Sure it's some percent, maybe even a third of apps that could get by with that, but it's far from the majority.

I can point to a ton of RN apps that have incredible UX and surprisingly nice animations/interactivity, with what I'd argue is much easier to work with codebases. Maybe I'm biased, but the Uniswap app is really nicely done with all sorts of native views. They shipped the Android version of their app in just a few months, sharing 95% of the code with iOS.