DJI introduced that DLog-M in the
Mavic 3 firmware to simplify exposing, Camera matching and grading with the
Mavic 3 Pro, for faster turnaround of footage or unexperienced colourists, who doesn't want to match different Log Profiles for different focal length in post. It's a good profile for cameras up to 10 to 11 stops of dynamic range, like the
Mavic 2 Pro, where it was originally developed for, or like the 1/1.3" Sensor of that 70mm camera of the
Mavic 3 Pro.
However, with the 4/3" sensor you'll lose between 2 to 3 stops of highlight latitude compared to DLog, which is a lot. That's because 4/3 Sensor of the
Mavic 3 (Classic) offers more Dynamic Range than DLog-M can cover.
And especially with wide-angle lenses you often have to deal with more contrast than with tele lenses, more precisely you have much more likely very light and very dark areas at the same time in the frame, so a profile which limits the dynamic range of the sensor is not very helpful there. In this respect, it makes little sense to use DLog-M instead of DLog with the 24mm eq. lens, if you want to get the most out of this camera.