It used to work until yesterday at least, and I think it happened after installing and running a virtual machine through Virtualbox. Pretty much the whole desktop is idle and unusable. I don't mind this, as I don't usually use the desktop to store files or folders on it, but I am curious what I did and how it can be reversed or intentionally brought to this state.
At some point icons disappeared, can't be added, I can't left click + hold to select anything, and the right click menu doesn't give me anything but the 3 options seen on the screenshot. The right click menu works fine when I am in folders though.
sudo apt-get install --reinstall ubuntu-desktop
you might need to enable the extensions from the extension manager. If you cannot see the desktop icons option in the list, try installinggnome-shell-extension-desktop-icons-ng
using the commandsudo apt install gnome-shell-extension-desktop-icons-ng
and enabling it from the extensions. – malin8a Sep 01 '22 at 20:45sudo apt-get install --reinstall ubuntu-desktop-minimal
if you have installed minimal version. – Jurakin Apr 08 '23 at 10:12