It's really sad to see that all the native options like druid got dismissed for being "not mature enough".
Guess I'll stick to WebAssembly and CLI Apps.
If it's still dismissed in six months to a year, that would be sad.
And unfortunately, Azul was abandoned by its maintainer a few month ago for family reasons, so it's unlikely to be polished anytime soon.
At this point there is no viable full-Rust GUI toolkit, but druid may be one at some point.