Must say i haven’t watched any full games of Gakpo. But based on skillset from highlight videos i can’t see where he fits. As others have pointed out, he seems most comfortable off the left wing, where most of our players prefer to play. He’s slower than Rashford, but with apparently better close control. He looks a better finisher than Rashford, but in my view looks to weak for hold up play as a #9 in PL currently.
Maybe intention is to free up Rashford as #9, while Gakpo builds muscle for next season, playing in the LW this season, being back-up across the board when Martial is back?
Either way i’d expect little from such a signing, but would love a surprise.