I didn't think so either . . . until I got the notification. A pop-up map showing the aircraft, altitude, direction and my location and altitude with a verbal warning saying "Warning, aircraft at same altitude approaching" When I turned and saw the aircraft (before even hearing it) the helo was about 1/4 to 1/3 mile away. THAT is NOT triggered by collision avoidance, and I am under no impression that remote ID will warn of other aircraft. DJI has equipped ADS-B on some of it's newer Enterprise drones, and now apparently has incorporated it (unannounced) into the higher end consumer Mavic 4 Pro. I have the RC 2 Pro, and I don't know if it works with the RC 2. I was as surprised as anyone at this! According to MS Copilot:
Does Mavic 4 Pro have ADS-B? Yes, the
DJI Mavic 4 Pro is equipped with ADS-B In via DJI's
AirSense technology.

What ADS-B In Does
- Receives signals from nearby aircraft equipped with ADS-B Out transmitters.
- Displays real-time alerts in the DJI Fly app or RC Pro 2 screen.
- Helps pilots avoid manned aircraft by improving situational awareness.
Key Notes
- ADS-B In only: The drone does not broadcast its own location (no ADS-B Out).
- Works with signals from 1090ES and UAT transmitters.
- Alerts are visual and auditory, but the drone won’t autonomously change course.
- Most effective in open airspace with minimal obstructions.
This feature is especially valuable for long-range flights, urban cinematography, and any scenario where manned aircraft may be nearby.