Here's a confusing reply from DJI customer support.
DJI
Mavic 3 Pro is equipped with three cameras, capable of switching freely between different focal lengths to adapt to the shooting composition of various scenes, including the Hasselblad camera with 24mm format equivalent, a 70mm medium tele camera, and a 166mm tele camera.
The tri-camera imaging system supports up to 28x Hybrid Zoom: 1x is the original optical ratio of Hasselblad camera, 1-3x optical zoom is achieved by the medium telephoto camera, and 1-7x optical zoom is achieved by the telephoto camera.