I have made very good experiences with the GTK bindings for go (https://github.com/gotk3/gotk3). As the GTK Api is C-Based, it fits conceptually very good to Go. Actually I consider the Go bindings even better than using GTK from C, as the thin object model GTK uses, translates well to Go structures, most functions become methods on those structures. And the Go garbage collector solves the memory handling of the GTK structures.

I mostly have too, but GTK itself is a bummer. Doing most any interesting thing is a ton of work.

fyne.io is pretty great

This looks interesting.

https://wails.app/

Also there are ways to talk back and forth with Electron for front end.

Full disclosure, have not tried either but just looking around as I get into Go.

I do a lot of web dev so like idea of HTML/JS for front end. I know I know, Electron is awful but maybe less awful if it's light?