Comment by gen2brain

Well, it is what was always considered to be a default toolkit. Sure, I like Qt and prefer such apps but you got a have the GTK installed anyway. It was always difficult to have general toolkit with it when you depend on dozens of dependencies, collection of libraries, not big fat libraries like in Qt, that you can deploy.

GTK4 changed a lot though, like they do not even try anymore, deprecated font dialog because that is better done with XDG portals, but such thing does not even exist. How will that work on macOS and Windows, it cannot? Or what they did with the menus. Toolkits should be user oriented and should not have vision, it just needs to work and provide controls, events, etc., you cannot even position windows in macOS and Windows with GTK4, that is not toolkit that works for users.

I am working on the IUP fork here https://github.com/gen2brain/iup-go , one toolkit to handle them all, and I did my best for GTK4 backend, but from 14 drivers/backends I worked on, it was the worst experience and I had to fight battles with it.