…GIMP_AppImage-git-2.10.19-20200323-withplugins-x86_64.AppImage
it is broken, when selecting it, no window will pop-up and nothing happens. Also tried with versions where we manually install plugins, did they change something in the plugin system?
I put a bug report up about this.
Anything python that needs a GUI, for example check it with Filters → Python-fu → Console
There is a missing folder usr/lib/python2.7/site-packages/cairo/