No,
"White 3" was the personal aircraft of Franz Stigler. A famous photo was taken of Galland standing in front of White 3, so later, everyone assumed "White 3" was Galland's. Galland and Stigler both joked about it for decades afterwards.
Most likely Galland flew whatever Me262 was avaialble...he "may" have flown "White 3" on occasion...but it 100% it was Franz Stigler's aircraft.
Mike