GNU/Linux is also a multi-user OS. … The more users, the more memory is required and the slower the machine will respond, but if no one is running a program that hogs the processor they can all work at an acceptable speed.

How does Linux provide a multi-user environment?

Each user of a Linux box can have multiple remote X sessions, with different desktops, and processes, while still allowing a local user to do their work. Much more scalable. You cqan even have KDE on one desktop, and Gnome on another.

How do I use multiple users in Linux?

The two utilities for adding or creating user accounts in Unix/Linux systems are adduser and useradd. These commands are designed to add a single user account in the system at a time.