To add to this, perhaps anecdotal but I've noticed Flutter to be in that specific area of people who like it and use it feel like they're underdogs, fighting in

To add to this, perhaps anecdotal but I've noticed Flutter to be in that specific area of people who like it and use it feel like they're underdogs, fighting in the war to make it the next big thing. It's not the default way to write an app on either Android nor iOS, so they're vocal about spreading the word and getting/keeping momentum. People who use Swift/UIKit to make apps may like it, but it's also the default way to make an iOS app, so they don't feel the need to fight a war. That language was handed down from above as the winner of iOS development. Same for Java/Kotlin/native UI libraries on Android.