Comment by bpye

I would love to be wrong, but I can't find anything that suggests USB webcams work on USB-C iPhones - I did try in the past for different reasons but couldn't find any way of making it work.

Some USB-C thermal imagers do claim to work, for example this one by HIKMICRO - https://www.hikmicrotech.com/en_us/industrial-products/mini2... - but I'm not sure how...