What is the best way to control the jetson Orin GUI remotely?

I am using Devkit.

Yes, with an external DP monitor plugged in works normally.

VNC does not work if I unplugged the Display port monitor.
The VNC instrucctions in L4T-README/README-vnc.txt says that VNC allows you to work physically remote from the Linux for Tegra system, and avoids the need to connect an HDMI display, USB keyboard, or
mouse. However when I try it on my jetson Orin the connection freezes.

Why does the dummy display port adapter doesn’t work?