After recent update to macOS Catalina all programs are asking if I'm giving the right permissions for them. Unfortunately, with GIMP it was not the case and whenever I'm trying to open any file using GIMP I have the following error Could not read the contents of Desktop. Error opening directory /Users/myuser/Desktop: Operation not permitted, or different locations like Downloads, Documents etc. The only 1 way to open a file is currently right click of a mouse and Open with GIMP, it works fine. This option is limited though, for example when want to open many files.
The question is how to give the right permissions in macOS Catalina?
It seems to me you only need to update the GIMP version https://gitlab.gnome.org/GNOME/gimp/issues/3710#note_659997 and that should suffice