We found the reason of jitter when following, which should actually be implemented in late update according to the traditional camera's following logic. However, because the development team that developed cinemachine gave the Damping values of three tracks in cinemachine freelook to 3 by default, the camera will be relocated to the track with a delay of .75 seconds, resulting in the camera's crazy jitter when following.

I can only say that although I am very grateful to Unity for developing such an easy-to-use plug-in, the users of the new thing pit are really trapped. Not only are there no documents to read, but the community can't find the relevant problems, so we can't honestly drag the damping to , lie down.