From the FAQ,
6.Why can't the Mavic 2's gimbal shoot vertically as the Mavic Pro does?
The Mavic 2's gimbal structure is optimized for increased stiffness, meaning that the camera is unable to rotate the full 90° needed to shoot vertically. However, you can choose the Vertical Mode in Panorama to get a stitched vertical photo.
Does this mean no more of the unique top down photos? As in the gimbal can’t be rotated to point directly down? Or is it referring to something else?The Mavic 2's gimbal structure is optimized for increased stiffness, meaning that the camera is unable to rotate the full 90° needed to shoot vertically. However, you can choose the Vertical Mode in Panorama to get a stitched vertical photo.