Does Ubuntu 20.04 have VNC server?
By default, an Ubuntu 20.04 server does not come with a graphical desktop environment or a VNC server installed, so you'll begin by installing those. You have many options when it comes to which VNC server and desktop environment you choose.
Does Ubuntu have built in VNC server?
Vino is the default VNC server in Ubuntu to share your existing desktop with other users. To set vino to request access each time, tick Allow other users to view your desktop in the Remote Desktop configuration window.