I am helping a friend of mine to install UB. He is trying it as a second DE option for Linux Mint.
Installation went smooth as usual from the command line by typing : sudo apt install ubuntu-budgie-desktop, but after logging out and back in and restarting there is no UB desktop option in the login screen, just two different Cinnamon environments.
Trying to reinstall UB returns : ubuntu-budgie-desktop is already the newest version.
Linux Mint isn’t a variant that we support because it does very weird packaging stuff - holding back stuff when it shouldn’t. So not really sure why the meta ubuntu-budgie-desktop didn’t work. Certainly would on official ubuntu and the official flavours.
That being said - check that budgie-lightdm-theme is installed.
Re-installation solved the issue partially … after a new logout - login, UB was gone again from the login menu. A complete installation from scratch will probably be the best …