No, at least not for the
P4. I'd be shocked if the Mavic behaved less capably.
Here's a mission where my heading changes while in a valley on the other side of a ridge from me. Heading changes occur as programmed, gimbal angles and speed changes don't.
Watch in particular starting at 2:43; I'm on the other side of the ridge to the right, disconnected, no signal indicator at all in Litchi:
Now, if I'd been connected, the gimbal would have also tilted down as the
P4 passed by the POI that 3 waypoints were using in "Focus POI" mode. However, because it was disconnected, the POI was below center frame as the gimbal kept pointing at a higher angle.