The GIMP shop interface has been the default and iterated on for the better part of a decade, If not longer. This is what I always wonder about people who claim that GIMP is somehow less usable. Have they used it much since 3.0? It's 4.X now BTW.

I know my experience personally isn't going to be universal. I first used Photoshop version 2. First version I bought was 3.5. I remember downloading and compiling pre-1.0 unstable binaries of GIMP on Debian back in the 90s. It was wildly awkward back then and for the next couple of versions as someone coming from Photoshop. That hasn't been the case for a long, long time. Honestly, it reminds me so much of the Photoshop I grew up using at this point.