How can i check what animation humanoid is playing now

I believe that after the deprecation of Humanoid:LoadAnimation and AnimationController, I strongly recommend using Animator instance for handling animations and running them, although that it is not documented yet but :GetPlayingAnimationTracks is one of the animator’s methods.

Animator:GetPlayingAnimationTracks
Animator
Deprecating LoadAnimation on Humanoid and AnimationController - Updates / Announcements