As i understood it, DCC actually raises the car +5mm - believe this was also true on the 7.5s too
From a while back:
Golf 8 ride heights <trim levels>:
Base/Life/Style = 0mm
R-Line = -15mm
GTI/GTD = -15mm
R = -20mm
GTE = +25mm
DCC equipped = -10mm instead of whatever stated above.
So to be clear on that the common answer was, yes DCC cars sit higher than non-DCC cars.