Fair, the problem isn't as bad for RN, for Flutter it's still very bad though.
> False statement. React Native provides you with ability to tag elements so you can use accessibility-tools to navigate the app. I have recently tested this with a RN app running on iOS 13 using the new voice control feature. Several testing frameworks also rely on these features being available.
The ability to tag elements is only a very simple basic requirment to get accessibility right. My point was more that if you use UIKit you get significant levels of accessibility for free.
Just as a quick example I did a quick ddg search for "react native how to create custom button" and all 5-7 top results that I looked at failed to set the appropriate accessibility roles so the button actually appears as button to a user with the screen reader. Yes you can still do accessibility right with RN, but it's not the easy to get it right be default and most app developers will not do this on their own.