FBX Recorder

With the FBX Exporter and the Unity Recorder, it is possible to export animations (including Cinemachine camera animations) directly to FBX in a few easy steps:

Open the Recorder window by selecting (Window > General > Recorder > Recorder Window)
In the Recorder window add a new FBX recorder

Set the GameObject to record as well as any other desired settings
Click "Start Recording" in the Recorder Window

Alternatively, the FBX Recorder can be added as a track in the Timeline.

Fbx Recorder Settings

Property:	Function:
Export Geometry	Check this option to export the geometry of the recorded GameObject to FBX, if any.
File Name	The filename for the exported FBX.
Path	The path to export the FBX to. Can be outside of the Assets folder.
Take Number	The take number can be set and used in the filename. It automatically increments after each recording.
Game Object	Set the Game Object in the scene to record.
Recorded Target(s)	Select which components of the selected GameObject to record.
Recorded Hierarchy	Check to record other objects in the hierarchy of the GameObject in addition to the selected GameObject.
Source	Transfer the transform animation from this object to the Destination transform. NOTES: - Source must be an ancestor of Destination - Source may be an ancestor of the selected object.
Destination	Which object to transfer the transform animation to. This object receives the transform animation on objects between Source and Destination as well as the animation on the Source itself.