Well he plays the same position as Sturaro, pretty much, but he's not really like either. His dribbling is far better than Sturaro's. His calmness is far worse than Lemina's. Lemina is physically stronger, Sturaro is defensively far better. He's probably between the two in terms of passing.
Think of someone like Badu from Udinese, good agility, dynamism and direct dribbling but can also pass and contribute defensively. I think if you put Lemina in that RCM position you would see more similarities than that of Sturaro.