This is correct. The Air 3 and Mavic 3 family of drones are not directly compatible with Lichi, BUT the conversion utility created by DJ Barris makes it possible to transcribe saved Litchi waypoint missions into DJI Fly format waypoint missions whereby waypoint missions can be created with Litchi, then converted to DJI Fly waypoint flight plans that WILL be compatible with the Air 3, and Mavic 3 drones.I have Air 3 and Mini 4 Pro, and soon Air 3S I don't see they are compatible with Litchi.
Whether or not the Air 3S can also fly such converted waypoint flight plans in DJI Fly remains to be seen once that model is released today, October 15th, 2024.