To install Docker Desktop on Ubuntu:

?> sudo apt install ./docker-desktop-amd64.deb
?> sudo apt install docker-ce-cli
?> sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
?> sudo chmod a+r /etc/apt/keyrings/docker.asc
?> sudo tee /etc/apt/sources.list.d/docker.sources <<EOF

To start Docker Desktop in user space:

?> systemctl --user start docker-desktop

To stop Docker Desktop in user space:

?> systemctl --user stop docker-desktop

To restart Docker Desktop:

?> systemctl –user restart docker-desktop

After upgrade of Docker Desktop:

?> systemctl --user daemon-reload
?> systemctl --user restart docker-desktop