GIMP 3.0 has been more than one decade in the making as the port from GTK2 to GTK3, also transitioning away from Python 2 to Python 3 support, and a wealth of other improvements from the UI to lower down into enhancing this open-source Photoshop alternative.
The GIMP project announced on X/Twitter today that they have entered the string freeze for this much anticipated release.
I think you're vastly overestimating how many people know about a random FOSS image editor. Gimp is not a household name.
When most people hear the word "gimp", they likely have something akin to this in mind (not an image editor):
IMO, that hinders adoption and certainly hinders financial support. It's an amusing name, granted, but it's not a good one if you wish to be taken seriously.