RealVNC

Enable the VNC server on the command line

Use raspi-config to enable the VNC server on the command line.

Open raspi-config with the following line:

sudo raspi-config

Navigate to Interface Options. Press Enter to select.

Select VNC. Press Enter to select.

Under Would you like the VNC Server to be enabled?, highlight <Yes> and press Enter.

Press Enter to return to the menu. Press Esc to exit raspi-config.

https://www.raspberrypi.com/documentation/services/connect.html