Guesses because what is a question on the internet without a dude giving low-expertise answers with supreme confidence. left-right pan on screen is too small relative to the 180° span of audio and 'stretching' it so 5 or 6 people are spread evenly across that spectrum would 'position' them too far from on-screen location. apps re-order people based on who's speaking or just re-joined which makes audio positioning more confusing. extended periods listening to audio mainly from one side is fatiguing (we tried slight spatial panning for our podcast but it didn't get great feedback and the pros advise against it) the additional bandwidth needed to achieve stereo would be better spent on improving clarity in terms of user experience