I finally tested a FaceTime call with my iPhone 13 Pro and the Belkin iPhone mount with my M1 MacBook Air running macOS Ventura. The setup was easy. iPhone automatically detected as a possible camera source within FaceTime. The image quality was obviously top-notch. The sound was great too. The tabletop feature required a bit of tweaking but eventually led to good (but not “top-notch”) results.
The only problem is the weight of the combined iPhone 13 Pro with a case and the Belkin mount: the screen panel of my MacBook tends to move back during the call. Oops. 🤣