How fast does egui change?

Over the next few years I have ~10 GUI applications I need to make to interface to about as many back ends.

The back ends are all written (or will be) in rust. I'd really prefer to have a purely rust front end, but that isn't a strict requirement.

Of the fully rust GUI crates it looks like egui is the most fleshed out, but they still state it's under rapid development.

My concern is that with as many applications as I need to write and maintain, I'm going to be spending too much time fixing breaking changes with egui.

Would I be better off going with the gtk4 crate instead?