I though the same but I tried Tauri and it makes sense. Unlike electron you're not shipping the entire browser with your app and the the low level stuff is just rust so the integration is nice and easy. And using webview for UI? Why not? The reactive libraries are actually nice to work with, it's easy to customize, you have all the tools to inspect/debug your code. It's definitely better then trying to fit GTK into rust.
oh JS too, which kinda throws me off because I'm not bad with Web Dev, but I'm not good either and my UI looks like a bad web page than a good desktop app.
I'm actually trying to keep it simple and write my own launcher like Alfred, Albert, Kupfer but I want it to launch my own custom scripts that I can load in a directory as well.