It’s important when having a conversation with someone over a video chat app like FaceTime to maintain good eye contact. With phones like the iPhone 14, we tend to look at the person’s face on the phone screen, which seems natural to us. But in actuality, this appears to the other person as though you’re looking slightly down. It would look more natural to peer at the actual camera lens, though that feels awkward to do. This is where a neat iPhone feature comes in to help you fake it. And you’ve likely already been using the feature without knowing it, ever since you set up FaceTime.
This should actually be present on all video chat apps, but even to the extent of you looking sideways at other stuff. Hopefully it does spread to all other such apps. I can listen while I do other stuff, and it just makes the other person feel better by seeing me looking at them (that is, if they are looking at me in the first place!).
See https://www.xda-developers.com/how-to-fake-eye-contact-on-facetime/