Will DJI make propellers for altitudes above 2500m?
That's one area where the Inspire 2 keeps a decisive advantage, other than the RAW video capability and the retractable landing gear.

The M200 series has 6 degree pitch.  That is more than the I2 standard props at 5.5.  There should be improved altitude performance.

So I guess the less air you have the higher the pitch should be so as to move more air per rotation?

And yes it looks the specs I had found were wrong, it seems to be 3000m and not 2500. That is not very much though, and while 3000 is high by European standards in America or other regions there are large plateau areas above that altitude so that's definitely an issue if you can't fly there.