What exactly are you worried about in terms of privacy?
Drone registration can be bypassed. Flight logs as well. Nfz is also configurable. But it all works for previous models. Very little is available to owners of mini2.
If we’re talking about privacy, there is basically none when it comes to DJI.
If you don’t know yet, authorities can track you using DJI Aeroscope, know your precise current controller location, your full info, drone location, altitude, speed, homepoint, basically everything.
DJI can access your logs if needed for legal reasons.
Using Litchi doesn’t change almost anything, your drone still will be visible to aeroscope devices, DJI will still probably be able to access your logs.