Flutter is gaining popularity after goggle release the latest update which can be used to develop web app and desktop app with a single code base. Which means by learning flutter you can be a full stack web developer and it is also easy than JavaScript which some developers find it hard to cope with.
Before the release it can only be used to develop iOS apps and android. The new update will be a joy for flutter developers as it can give them more opportunity to get boost thier revenue.

Your opinion on flutter

Flutter will gain the market share for app development. No cap, it is business friendly because it saves time and money in development.

But when it comes to serious applications e.g game development, app that make use of native or bare metal functionalities, then and then Java or the objective-C(apple I guess) would be used. If possible maybe C itself or assembly, if everything must be bare metals.

So I advise young dev to learn flutter of they have to but have the limitation at the back of their mind.

stanliwise:
Flutter will gain the market share for app development. No cap, it is business friendly because it saves time and money in development.

But when it comes to serious applications e.g game development, app that make use of native or bare metal functionalities, then and then Java or the objective-C(apple I guess) would be used. If possible maybe C itself or assembly, if everything must be bare metals.

So I advise young dev to learn flutter of they have to but have the limitation at the back of their mind.

Sure! You have actually nailed it. But kotlin is the official language for Android app development. You should also know that a new os which is fuschia is also being developed by Google. It is entirely written in flutter (Dart) and it is set to replace Android. So you see it is going to stay with us for a while.

Jetpack Compose is coming for it.