>>101728977
Idle animations exist because people can't physically stay still and, in case of more involved activities, it serves an actual purpose, but excess wasted movement is still bad there (e.g. boxing).
There is a difference between a character bouncing around a little and their whole being turning into liquid from slightest movement. Pic rel is a good example (even if the original animation involved this much bounce, why is his hat going into the stratosphere?)
This is a common indie vtuber problem. Doki's model suffers from it too whenever she's turning around. You can also see something similar in some HoloGra episodes (and a lot of EN animations) and I fucking hate it (easiest way to spot it is when a character's head dips before making another movement for no reason).