I found this clip on YouTube today: https://youtu.be/kBtu-2pkYT8
It features actress, Ashi Singh, as Yasmine from a recent Aladdin TV series (India).
Very watery - in fact, one could say just water with a bit of clay coloring - quicksand. Also, not very deep. This video is mostly alternative views/camera angles and multiple short takes from the quicksand scene.
Interesting from the point of view of how a director shoots such scenes. Nothing, though, compared to what the producers here do - just my not-so-humble opinion.

Enjoy,
Michael
SDVP