I do not know what the exact name it should be called, but I lost my Gimp menu.
This is what I lost.
I do not know what the exact name it should be called, but I lost my Gimp menu.
This is what I lost.
In Gimp 2.8 & 2.10:
Click the Reset button at the bottom to go back to factory settings.
In practice this kind of setting is in your Gimp profile.
Reinstalling Gimp doesn't fix anything since the Profile is not rewritten (it is more efficient to erase/rename the profile (without reinstalling) to have Gimp recreate a new one).
Installing the next version doesn't fix it either since Gimp migrates your profile to the new version. In your case it worked because your previous version was too old to be considered for migration and Gimp created a new profile with the default settings.
After trying to purge gimp and reinstalling, I had no luck.
I decided to try installing Gimp using software.
It used a flatpak and now my menu is present.