ゴミ掃除

• ubuntu 20.04 server

    sudo systemctl stop snapd
    sudo systemctl stop snapd.socket
    sudo apt purge snapd
    sudo apt autoremove
  

• ubuntu 20.04 desktop

    sudo systemctl stop snapd
    sudo systemctl stop snapd.socket
    sudo apt purge snapd
    sudo apt purge network-manager
    sudo apt purge firefox
    sudo -E apt purge gnome*
    sudo apt autoremove