Accessing Multiple Client Users on Same Machine

Accessing Multiple Client Users on Same Machine

I have a Linux workstation that i need to access remotely. This user is logged in, but not actively using the desktop. Can i access a user that is not logged into the desktop? In other words. User X and Y are both logged into Ubuntu 20.04. User X is actively working on the computer, but I need to access user Y's login. Is this possible?