No, it seems that hdmi is not activated until camera starts to feed the video.
The same apparently applies to “2d geometric shape recognition” project.
It doesn’t output valid signal on hdmi until there’s camera module connected and streaming.
No, sorry 
Unless I can validate the pin assignment and rebuild project myself, or have someone to take responsibility for possible damages, I’d rather not upload something that can’t be verified.
I’m using esp32, with basic arduino example (01LoadDefaultBitstream).