Yes you don’t get things like Poe Etc. At least not on the zero models. There are hats for the full size pi. But you have full control and they are upgradable. I have a zero w in the official enclosure. Double-sided tape to a wall with a micro b cord plugged into power it. Can access the stream over Wi-Fi and get 30 frames per second 720P easy. Could easily do much better than that even. But the original Raspberry Pi camera module I think is the limitation. Because the cores on the Zero are barely being touched at all. In the low double digits if that.
It’s so light on resources that if someone had an old USB hub. And some old web cameras laying around. You could run multiple cameras off of a single Raspberry Pi zero. I think you would hit Port bandwidth saturation before you would hit a CPU limit. Unless of course you’re trying to reincode.
Ole Winnie Xi Poo got his fee fees hurt. It was always that or they were terrified of people protesting and not knowing who to jail or kill because of the masks.