I did a project in Xamarin Forms. The toolkit kinda worked, but nothing great about it. Amount of bugs was amusing: bugs from Xamarin + bugs from iOS + bugs from Android. Certainly does not fill most of my points. Writing anything custom was pain in the ass, since you needed both Android and iOS knowledge to implement the renderers.
Sure it would be the best to go fully native and hire 3 iOS + 3 Android devs, but who will do this when they can have 95% of the same with 2 flutter devs?
The usual fallacy. What you can do with 2 cross platform developers + 1 iOS + 1 Android, you can achieve with 1 iOS expert, 1 Android expert and one who can do both iOS and Android well enough.
> but who will do this
Anyone who wants quality apps. So basically not most start ups, I guess.
> can have 95% of the same with 2 flutter devs
False. Just like it's false with Electron and React Native. At most you have 75%, and that's the most simplest apps. At least with React Native, you can somewhat easily integrate native components. It's ridiculously hard with Flutter. (For example, see how long it took to integrate with MapKit.)
Sure it would be the best to go fully native and hire 3 iOS + 3 Android devs, but who will do this when they can have 95% of the same with 2 flutter devs?