Aerial Duels
Neither striker is actually that strong in the air, going by their aerial win percentages in Serie A over the past two and a half seasons.
They are pretty similar aerially with Vlahovic winning 46.7% of his aerial duels for Fiorentina and Juventus.
Since moving to Serie A, Osimhen has won 45.2%, which is even less impressive when you consider he has had 131 fewer aerial challenges than Vlahovic during that time.