CDX_EIRE
Vital Football Legend
Then there's Man C installing holograms of fans:
https://news.paddypower.com/football/2021/09/23/man-city-to-install-hologram-of-standing-fans-to-make-the-etihad-look-full-/
During the early stages of COVID MLB had computer generated fans and it was bloody impressive. I was watching a Yankees game and it was very confusing to my mind.