Yeah, i faced the same challenge. I understand why they do it like that (cameras potentially mixing socs)…

I think there are some make/ models on their project but its far and few. Ive flashed 1 camera so far but had to check the soc myself

I need to crack open my (cheap chinese) cameras and check them at some point. Ive noticed them pinging my pihole for secu100 for cloud services. At least theyre blocked for internet access!