I never understood these types of things, what niche are they going after? This feels like it could be a competitor to QT, but without a real-time operating sy

I never understood these types of things, what niche are they going after? This feels like it could be a competitor to QT, but without a real-time operating system like QNX, what's the point? React Native won out over Fluter, Java Applets lost to HTML5 / JS, Framer is much better than Wordpress. Time and time again, clever simulations on top of the native world are never worth it.