Gaming footage/videos, some games are so fast they are noticeably better to play at (and watch at) 60fps over 30fps.
I don't watch too many of those, and those few that I do are more 4X (Civ, Stellaris, etc), so that maybe that's why I don't notice it as an advantage for most of the content I see.
I think many people would consider 60fps to be a minimum and 30fps to be almost disorienting, even for casual games.
Gamers often go for 120-240Hz monitors even.