Traditionally, Ubuntu has used various methods for starting services at boot such as upstart or rc.local for scripts.
The default screensaver behavior in Ubuntu is for the screen to lock after 5 minutes of inactivity.
Ubuntu has supported workspaces for over a decade now.
Back in the day, Ubuntu used to have a dedicated swap partition, and it was recommended to allocate 2x the installed RAM to this swap partition.
Installing printers on Linux is a highly variable task.
Deleted files in Ubuntu are normally moved to the trash.
While .deb packages and tarballs are still the primary packaging formats in Ubuntu, appimage is growing increasingly popular these days.
Thunderbird is a free and open-source email client that comes preinstalled with Ubuntu.
Ubuntu uses the systemd system and service manager as the init system.
The way the built-in screenshot tool works in Ubuntu has changed over the years, as have the default shortcuts.