echo deb http://archive.ubuntu.com/ubuntu/ bionic-proposed restricted main multiverse universe | sudo tee /etc/apt/sources.list.d/proposed.list
sudo apt update
sudo apt install gnome-shell
sudo rm /etc/apt/sources.list.d/proposed.list
nohup gnome-shell --replace &
sudo apt install gnome-shell/bionic
nohup gnome-shell --replace &