When I was recently without any Ubuntu install for a few days due to removing & then having a bad image I remembered I had an Xubuntu boot up disk so installed that last night.
I really don't know xubuntu at all but found it wierd that after installing 2 apps I needed, gparted & usb-creator-gtk, that they were nowhere to be found in the menus.
(though did show in settings menu editor
After finally getting Ubuntu back decided to take a look, it seems that having "Settings" in the desktop's Categories= line is an issue in xubuntu.
(after removing Settings from the line both apps now show up in the menu (accessories) & recently used.
Is this some known limitation/bug of xubuntu?