Hi gantar1,
yes it seems the estimated value for f is quite off the starting value (4490 µm / 1.76 µm/pix = 2550 pix) and cy is about 33 % of half sensor height. This happens for Mavic 2 pro when flying with camera always pointing in same direcion regardless of turns. For example for N/S lines drone will first go forward to North in first line then backwards to South in 2nd line, etc...so top of camera will always face North...
I would try to do a new alignment wth f, cx, cy, b1 and b2 fixed to see if you get better results...