GIMP is not a competitor to Photoshop; Photoshop is an image manipulator, while GIMP is a puzzle-based image modifier.
GIMP user interface stays awful, even after the long long-awaited 3.0 update, unfortunately. Hope its interface would see the revamp it needs so much, as Blender 2.80 once had back in July of 2019.
And one day, it would truly become a great open-source image editor.
Still, congratulations to everyone involved. I’ve been awaiting this release for a very long time, since it natively supports Wayland in Linux, which I use.