Today I replaced the bulky Micro HDMI cable with Micro HDMI connector modules that connect with each other through a flat cable decreasing the bulk of the system quite significantly.

I also got some other small Micro HDMI connectors, just in case I need to solder some myself, which I do not prefer, but you never know if it may be needed:  
https://nl.aliexpress.com/item/32852450175.html

I also connected the camera. I'll have to look up some docs to see how to get that working. I will share this when I get it sorted out.