With macOS Ventura, you will be able to use your iPhone as a webcam for video calls. We have already covered a couple of 3D printed Continuity Camera mounts for MacBooks here. This Continuity Camera Mount is made for VESA compatible monitors. It has a mounting plate that screws to the back of your display and has 2x 1/4″ tripod threads and a GoPro mount.
You can use this Continuity Camera Mount for your camera, lights, and other accessories. It is made with PLA plastic. More information is available here.