Plug-ins not appear into the menu bar

[rich2005]

There is a good chance that the distro you use no longer supports python 2.7 which is needed for Gimp python plugins.

Have a look in the filters menu for the Python-Fu entry. Not there ? then there is no python support.

Options ?

It might depend on your distro. 'buntu 22.04 and later / Mint / Debian try the flatpak Gimp version. That comes with its own python2.7 but is sandboxed which can be a problem if you scan / print from Gimp. Try and see.

For 'buntu / Debian try an appimage. see:
https://www.gimp-forum.net/Thread-new-gi...5#pid39455
or
https://www.gimp-forum.net/Thread-gimp-2-10-36-appimages-with-python-and-mathmap not that one - oversize packages This one
https://github.com/TasMania17/Gimp-Appim...-for-Linux

I use these with kubuntu 22.04 and kubuntu 24.04