Flutter Flatpak request

Project information: Flutter is Google’s SDK for crafting beautiful, fast user experiences for mobile, web and desktop from a single codebase. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.

Name: Flutter
Homepage: https://flutter.dev
License: https://github.com/flutter/flutter/blob/master/LICENSE
Upstream has been contacted: https://github.com/flutter/flutter/issues/41737