> Also frankly, nobody forking Flutter will be nearly skilled enough to work on the Flutter engine (Impeller).

For me its so weird they ditched google/skia to develop Impeller in Dart from scratch in the first place. If skia was not ready they could move just 1-2 developers to Skia team to collaborate with them. Now they want to even write their own 3d rendering lib based on Impeller (flutter_gpu, flutter_scene) even thought google has already mature 3d engine in C++ (google/filament). For me from the outside looks like "not envented in our team" syndrome. We are now in funny situation that react native has react-native-skia and react-native-filament and Flutter teams reinvents the wheels.