Ubuntu and Debian both uses GNOME as the default desktop environment. While you can create a new user in both Ubuntu and Debian using the command line as with any other Linux systems, GNOME provides an easy-to-use interface for creating a new user.
Related: How to add new user in Linux
You can create a new user in both Ubuntu and Debian using GNOME's Settings tool.
Your account must have Administrator privilege for this to work
An administrator will have the capability to make system-wide changes such as to add a new user.
A Username will automatically be generated based on the entered Full Name but could be manually changed.
|Ubuntu 16.04 LTS (Xenial Xerus)|
|Ubuntu 16.10 (Yakkety Yak)|
|Ubuntu 17.04 (Zesty Zapus)|
|Ubuntu 17.10 (Artful Aardvark)|
|Ubuntu 18.04 LTS (Bionic Beaver)|
|Ubuntu 18.10 (Cosmic Cuttlefish)|
|Ubuntu 19.04 (Disco Dingo)|
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