I do appreciate that this is a problem worth solving though, and I spent a lot of my time during COVID worrying about the negative impact that normalising loss of eye contact would have on the social interactions of our younger generations.
Back in 2021, I took one of those £50 teleprompter mirrors that YouTubers use, put a 7in raspberry pi display in the slot where you're meant to put your phone, and made it my 'work calls display' for a couple of days. The interesting thing is that the only people that noticed without me pointing it out were completely non-technical, and when they did they complemented me on the quality of my webcam rather than the fact I was looking straight at them; they could tell something was better, but couldn't quite put their finger on it. Which is funny because I'm sure being stuck behind a cheap perspex one way mirror made my actual camera quality a bit worse.
I remember I got to the point where I started playing with cv2 trying to do realtime facial landmark detection on the incoming feed and having a helper process shift the incoming video window around the little screen so that it would keep the bridge of the other person's nose (the point I naturally made eye contact with) pinned to the bit of the screen that was directly in front of the webcam lens. Then one morning I walked into my office, saw this monstrosity on my desk, realised I was nerd sniping myself and gave up.
One thing I do remember though is how odd it felt looking at yourself in a mirror without your image being mirrored. Not sure my brain was ready for that one after thousands of years of looking at itself in mirrored surfaces.
Bit of a weird pic but the only one I can find: https://pasteboard.co/BXE6zhbpOD7E.jpg