I disagree.
The brains of this team is Macca and by faaaar, no matter what primarly task and role he was given in a certain match.
Even if Gravs has improved a lot and Slobo it's in a very good level. People gets fascinated with dinamics, yet the one that gets everyone ticking that makes Pool actually having the control Slot wants, to actually sometimes enter a "boring zone" it's the ginger, Klopp went fro that and go it, "Slot knows that too".
Their main instigator for pressing/attack is definitely Szoboszlai.
You will often see him the furthest forward, ahead to even Nuñez/Jota, telling everyone around him where and when to press.
Slot even persisted with him when he was off form and lacking confidence.
Coincidentally, their wobble this season happened when he's absent.
He's playing Firmino's role but from no.10 position, giving them an extra man on the edge of opponent's box, which in turns reducing marking on Salah.
Alexis is better at threading ball through congested space but he's not the brain of their operation, at least not now under Slot.
Other aspect of Alexis' game is the understated aggression and cunning; he doesn't hesitate to foul when he sense dangerous break.
Gravenberch is being utilised as the main outlet to relieve pressure when the have the ball.
His signature turn combined his long reach is really useful and he can carry the ball really well if opportunity present itself.
This midfield trio is arguably one of the best in Europe now.
Man-for-man, Camavinga/Valverde/Bellingham looks better on paper but as collective? Not really.