You can now use your iPhone as a wireless webcam in MacOS Ventura. How do I position my phone to use it as a webcam, you ask? I'm sure there will be a lot of mini-tripods and phone mounts available to clip your phone to the top of a MacBook.

But I've gone ahead and designed a simple one via TinkerCad. This specific mount is designed for an iPhone 13 Pro Max, with a case, and the new M2 MacBook Air. You can try downloading the printing it if you think it'll fit your phone/laptop, or the CAD file available as well, and you can adjust the measurements to your liking.

TinkerCad file:
https://www.tinkercad.com/things/dJgmp559lZ7-cnet-iphone-macbook-mount-or-hook

CNET source article:
https://www.cnet.com/news/the-3-best-new-features-in-macos-ventura/