Here's a pretty good view from above, from reddit:
https://old.reddit.com/r/Damnthatsinteresting/comments/aa632...
https://old.reddit.com/r/Damnthatsinteresting/comments/aa632...
Youtube doesn't post process vertical videos correctly, while Facebook, Reddit, Instagram, and many other sites keep the processed video in its flexible aspect ratio - primarily for their mobile users who would have no UX problem.
Interesting how that hasn't made it into the discussion, I feel like people will just stop talking about it when the UX is fixed
As good as it was, I never wanted to watch videos in that way.