I know people argue he isn't a DM, but he does predominantly remain in areas identical to these players when you look at heatmaps. You can call a player what you want, but if they have a heatmap which is far closer to a player in another position at a different team, you have to compare them instead.
Fred's heatmaps follow DM heatmaps quite closely at the top teams, though a slight swaying to the left. You can't really compare him to the likes of Gundogan etc., who play far more in the opposition's half of the pitch (he pretty much plays as an attacking midfielder). It is not surprising a player who plays further up the pitch can create more chances.
I have taken the stats from one of the players' best seasons underneath, by the way.
Defence Comparison (tackles and interception per 90 minutes)
Kante (16/17) - 6.0
Fred - 5.4 (This season only Kante matches him in this aspect)
Fabinho (19/20) - 4.2
Fernandinho (17/18) - 3.7
Rodri - 3.1
Attempted Tackles per 90 minutes (Succesful)
Kante - 4.9 (3.6) - 73%
Rodri - 3.1 (2.1) - 68%
Fabinho - 4.5 (2.7) - 60%
Fernandinho - 3.2 (1.9) - 59%
Fred - 5.7 (3.2) - 56% (Engages in the most tackles - likely comes from his pressing)
Dribbled Past per 90 minutes
Rodri - 1
Fernandinho - 1.3
Kante - 1.3
Fabinho - 1.8
Fred - 2.5
I think you have to take into account how dominant a team is here. I mean the fewer attacks you face, the less chance of being dribbled. And it is probably impacted by his pressing. We haven't had the most organised press, which will impact success levels. I think we may have started to improve in this in the last three games or so.
Dribbles per 90 (Successful) and Success Rate
Fred - 1.2 (1.1) - 91.7%
Fernandinho - 0.8 (0.7) - 87.5%
Rodri - 1 (0.8) - 80%
Fabinho - 0.5 (0.4) - 80%
Kante - 1.4 (1) - 71.4%
Whilst people say he is not very good on the ball. Fred is actually a very good dribbler. When he attempts a dribble, he tends to succeed in beating his man. Despite attempting more, he still manages to exceed the others in success rate. This is definitely a strength of his that a lot of people do not consider.
Creativity Comparison - xA and(xA per minute)
Fred - 1.71 (0.00129)
Fernandinho (17/18) - 2.84 (0.00098)
Fabinho (19/20) - 1.68 (0.00081)
Rodri - 1.31 (0.00076)
Kante (16/17) - 1.88 ( 0.00060) - When Chelsea won the PL
People ask for creation, but how much do you expect from our midfielders when they play in the same areas as these DMs? (McTominay is 0.00128, by the way). They mostly play from deep. The chance of them actually creating loads of chances is very low, and I think people do have too high expectations on this side. Pogba has the lowest xA per minute of our three, by the way. The deep position is going to affect them.
Goals
Fernandinho - 5 (This was his best season - a lot of the time it has been 2 or 1 goals per season in the PL)
Fabinho - 2
Kante - 1
Fred - 0
Rodri - 0
Shots per 90
Fernandinho - 1.5
Fred - 1
Rodri - 1
Kante - 0.8
Fabinho - 0.5
Goals are nice to have, but goalscoring is not a massive concern to those that cover DM areas. In truth, they rarely score. Busquets has scored 15 in his whole career. Makelele scored 30 in over 700 games. Carrick scored 20, I think, in his career. Unless they are the major freekick/penalty taker they won't score all that many. In terms of shooting, his stats are identical to Rodri's stats. None of these players takes many shots.
Overall, I think the stats and the heatmaps really make him a DM of this type. He performs well in most areas. If he could increase his tackle success on top of the level of attempts he manages to get in position for, he would be monstrous. He already recovers the ball more times than anyone in the PL this season, aside from Kante (who matches him).
Creatively he is above all of them and betters them in terms of dribbling. If he could get a goal or two over the course of the season, he would be a great DM.