You can apply animation from an fbx file to the camera using the Avatar Effect Camera Movement Script.
Click on Add Component under the Inspector window, and search for Camera Follow Path in the search bar.
This component has a few settings:
- Legacy Animation Clip
Drag the fbx file containing your animation into the Legacy Animation Clip field. See below for FBX settings.
- Child name
The name of the camera in your FBX file
- Target name
The name of the camera target in your FBX file
- Tweak Axis
Unity's orientation is;
Y+ = Up
Z+ = Forward
If your files export from your animation editor with a different orientation you can align to achieve your desired orientation using the Tweak Axis fields.
- Offset / Ignore rotation
Use these if you want to make universaal adjustments the animation in the editor.
- Start time / End time
Set the end time to the same as your animation file.
For more info and examples, check here.