I for one have never used Photoshop but I used to use Gimp occasionally for some semi-technical markup and annotation. I remember being baffled by how to make a hollow circle, as opposed to a solid one. I kept forgetting the process so I had to look it up every time. Nowadays I just use canva since I don’t want to analyse menus and tool options every time. I don’t have to use Photoshop to say that Gimp’s UI can be better. Anyway, I also use Audacity extensively and although it’s not as outstanding of a case as Gimp, the older versions were a pain, nowadays it’s much better but still plenty to improve (I have not used other audio editing softwares)

Then again I learn software by intuition and exploring menus (rarely I go to read the manual, as do majority of the people I imagine), if I was taught how to use it by someone like you, maybe things would be different, but I doubt that’s how most people interact with software.

I think the difference is with their software you can play around the UI and figure out things by intuition and trial and error

The same thing is not enough in FOSS in many cases. Like for ex, drawing solid shapes in GIMP