Add Rust to your list. The Rust UI ecosystem is still very immature, but it has a tendency to implement things very well once they are implemented and the potential is huge.
Speaking of Rust UI, do you have any favorites? I've been casually watching for a long time but haven't seen a clear winner there besides Iced or egui.
Iced is still the most capable atm, but Vizia and Freya are also worth looking at. The great thing is that the ecosystem is mostly made up of modular composable libraries, so to a large extent once one framework gains a functionality they all do.