The interesting thing for me here is that Rice was signed as a game changer at the #6 but ended up playing as a pressure 8 that wins the ball back and gets them moving.
Gallagher is worse than Rice as a 6 but as a pressure 8 that can win the ball back and contribute goals, there isn’t a massive difference.
Rice doesn’t have the passing game for the 6 in a possession based team. There was a great video showing how he often chooses the wrong option from deep where as Jorginho mostly chooses the right one, he also isn’t that press resistant which is key in any team that wants to dominate from the base. Rice was fine at West Ham as the DM in a Moyes style but at Arse he was always going to be ball winning box to box. He has a huge engine, great intelligence off the and seems like a leader, his current role as a box to box fits him perfectly.