CM3 length matching on MIPI CSI 2 interface

I’m Planning to use the MIPI CSI 2 interface of CM3 in my own design. I’m wondering if the differential pairs of the 4 lane MIPI CSI 2 interface are length matched to connector.

If not what is the length difference of each lane.

I’m asking because I had a look into the documentation of the Raspberry PI CM and there the lanes are not length matched.

Hope anyone can help me.

Thanks in advance