Mount, Bruno, Casemiro is pretty similar to Havertz, Odegaard, Rice. He offers the ball carrying, goal scoring similar to Havertz. He'll be fine.
None of Mount, Bruno, Casemiro are good at shielding the ball under pressure, dribbling past opponents in the midfield, controlling (slowing down if needed) tempo of the game. None of them are reliable passers with high volume of accurate passes under pressure. Also, two of the three are lightweight players who get physically bullied easily. We can't control the midfield with this trio.
Just an illustration:
Passing completion %:
Rice - 87% [last year, it was xhaka who was 86%]
Odegaard - 81%
Havertz - 82% [last year, it was partey who was 88%]
(average 85%)
rodri - 91% (who got higher volume of passes)
KDB - 72%
Gundogan - 87%
(average 83%)
Tchouaméni - 93%
Modric - 88%
Kroos - 91%
(average 91%)
Liverpool who also plays transition football 22-23
Fabinho - 88%
Henderson - 84%
Thiago - 87%
(average 86%)
In contrast:
Casemiro - 78%
Bruno - 74%
Mount - 76% (Eriksen - 82%)
(average 76%)
(FYI, Scholes and Carrick both had passing accuracy of 90+% in their PL careers. Roy Keane was 89%.)
Don't underestimate the 10% gap - the ball is almost twice likely to loose to the opponents when it comes to our midfield compared with other strong teams.
It is okay to have a "creator" to have a low passing accuracy. But never imagine all three midfielders with 7x% passing accuracy who all love to release the ball quickly from their feet, a chaotic midfield is certainty.