It used to be way worse. I first tried gimp 10ish years ago and instead of the program running from a single window it was like the canvas, the hierarchy tree, and every other toolbox had its own separate window. I think they updated that a while ago now.
I agree with you there. I’ve personally found it very interesting to try new programs and figure out each one’s layout and work flow, but I’ve found many people absolutely hate doing that. I get it, if you want to just use the product for what it’s intended for maybe you don’t want to waste time learning the differences. All of that in consideration, I don’t think gimp is that bad