I appreciate your thoughtful response. I'll be honest: Nkunku gives me Werner vibes. I also worry that he tends to occupy a lot of the space and does a lot of the things that Leao does. If he can play as our RW, I'd be down, and I've seen him drift to the RW before, but he seems to really be a Red Bull-style attacker, and I don't like them.
He's a good player, but, I just think you have to ask where he would fit. And yes, right now, I would take Berardi (and I hate him), that's how bad our attack is right now, that doesn't mean we should get Berardi--and Nkunku is actually a good player unlike Berardi, I just think Nkunku doesn't fit what we do. When he played with Theo and Giroud for France, he looked pretty bad, but, that's one game. As far as Brahim goes, I've never been a fan of Brahim, even if I hoped he would make good on his potential.
However, your point about Jota and Mane is great. If Pioli and Maldini think they can do that with Nkunku, I'll trust them. I fear he excels in a particular system and I tend to distrust players who get hype, but also, I worry about buying players and then asking them to do something different to what made them stand out in the first place.