Ubuntu, and probably other distros, have screen as a hard dependency for doing upgrades to new release versions on the command line (do-release-upgrade command)

Ubuntu, and probably other distros, have screen as a hard dependency for doing upgrades to new release versions on the command line (do-release-upgrade command). I encountered it again just the other day while updating to an LTS version. It's a fantastic feature to have by default, in case your ssh connection gets dropped during the upgrade or something.