Multipurpose CameraRig is best for vehicle control. Because when player want to turn, their vehicle turning based on it’s current direction. Which is easier to perceive this if the camera following the vehicle move direction.
For FreeLook Camera Rig, it’s better for humanoid like character control. Because player expect agile movement from their character.
Our Fixed Camera is nice for mobile game, and hack and slash game. It’s more convenient for player to see their character’s surrounding. So for this game development learning, Fixed Camera is best for me.