Sound under car when AC is on

[Neonodd]

So I recently noticed this sound from the front driver side under the car when my car is idling with the AC on. I turned the AC off and the sound goes away. I did notice that I hear it briefly when I turn the car on after letting it sit over night.

AC works perfectly fine and cools the car quickly.
Here's a video from under the car:

https://youtube.com/shorts/ppTvVynGLHM?feature=share3

Any ideas what it could be?