The file 'IPhone Webcam (Easy/No Supports) 3D Printer Model' is (stl) file type, size is 31.2KB.
Link to customize your holder:
https://www.tinkercad.com/things/j6hTG9fYePS
This was made to work with Continuity Camera on the new macOS Monterey. Can be used with other apps such as EpocCam. The oficial holder uses magsafe (my iPhone doesn't have, and costs $30) and this one costs only $0,40 and fits not only on MacBooks.
Hope this can be useful for you!
iPhone_Webcam_Holder.stl | 90.4KB |