Scratching brakes XC90

Hello dear Dickelch driver! Last month I bought a 3 year old XC90 year 01/2006 out of the leasing and read as often in this forum problems with rubbing brakes especially when braking lightly.Had this led back to a longer service life for the first time.The problems have probably been fixed in 2006 with a mileage of 28700 by the previous owner in a workshop. If one compares the brake discs at the front and at the rear, of course, it falls to the front flash-blank while the rear discs are usually a bit rusty, which, in my opinion, is more to the general, as well as load-dependent brake force distribution two thirds in front to a third behind.Unless the outer lining is not properly applied due to a defect of the rear brake tongs. and the brake at the rear looks one-sided, which naturally comes with a stronger wear of the inner brake lining as well as one-sided terrestrial load of the brake disc. So far to the theory…..Before I am led by the “friendly” behind the light again, I just set this problem here and hope for your help as well as suggestions for solutions. MfG !