Feels like a sort of 3-1-2-4 in build up with one of Amrabat/Casemiro sitting between the CBs and the other pushed ahead of them. Dalot overloading the right side with Pellistri and Mount/Hannibal in the half spaces.
I really like it because A. Amrabat takes pressure off Casemiro of having to take the ball on the turn under pressure so much which he's poor at and B. both CMs can take passes on the turn unlike Bruno or Eriksen. Add in Martial in the middle and we retain possession excellently with this lineup.