As one can see from the images below, the seat seems to be placed so low on the cabin, I cannot figure out how the pilot could see anything.
Can anyone explain how a Focke-Wulf 190 pilot would be able to see out of the cockpit?
It looks like the pilots are performing taxi-runs for show. For an actual flight, by sitting on the seat pack parachute (and/or a cushion) the eye level is raised as shown below:
For how to taxi while sitting so low, it's usually down by taxiing in an S-shape or following hand signals from a marshaller.