They still haven't got native scrolling perfect for iOS. I used a big name app just today and I could instantly tell without looking it up that it was a flutter app, because the scrolling felt non-native.
This is fixed in the past few versions of Flutter, they likely haven't updated their SDK.
If that's the case I might reappraise flutter!
You definitely should, it's grown a lot and Dart 3.0+ in general is a much nicer language than before, due to adopting functional features as well as having a garbage collector.
Scrolling is like an Achilles' heel of Flutter. There's still no smooth scrolling with mouse for web.