This is not what the people want. Understand that. Give us Rust and Qt. Why be so focused on trying to sell something that doesn't measure up? Even beta Bridges is better than Slint. Take the advice and put the energy to better use for the good of Rust.
Qt Bridges might be better if your project can use the `Qt Design Studio Enterprise license`. Otherwise Slint looks like the better option.
Not that I'd use either when I can just make a Web based UI most of the time and be done with it.
It is tricky, but it is not unheard of to write Qt applications as something other than C++.
These days you write the logic in C++ and UI in QML which is a very pleasent experience.