The DJI Inspire 3 does have an obstacle sensing system.

The drone is equipped with an omnidirectional visual sensing system to detect obstacles in all directions, providing comprehensive protection for flying.

*Obstacle sensing on the DJI Inspire 3 is disabled while the landing gear is in the process of being raised or lowered. When the landing gear is down, there are obstacle-avoidance blind spots at the front-left and front-right areas of the aircraft of approximately 20°.