Here’s a video that shows quite a lot of his attributes and what he can do but obviously it’s a YouTube compilation and the game is a lot more complex but at least you’ll have more of an idea what he is like.
Wouldn’t say he is Kante or Herrera levels in hunting balls down but if a ball is to be won and he can do something about it he will be quite aggressive in that pursuit.
If there is a comparison to be made it’s maybe a more athletically gifted Dembele of Spurs with better defensive attributes.
Dembele at Spurs, at least in his best seasons there, was a much better ball winner. Dembele in his career in the premier league has had several seasons where he won the ball double the amount N'Dombele has won the ball for Lyon this season. So what you probably missed was that in his best seasons Dembele did hunt the ball down like Kantes and Anders you mentioned.
N'Dombele's strength other than his physical power is as much as anything his passing.
While Dembele's passing was probably just a bit short of taking him to the next level as one of the elite midfielders in the premier league - he was a fine passer but he wasnt going to unlock teams with a deft pass.
N'Dombele has a bit more of an eye for finding his attacking teammates with good passes. More on the Carrick level there than the Dembele level imo. But with vastly obvious physical differences and not as reliable as Carrick at finding a good defensive position.
N'Dombele has 4 assists this season and compared to some other players in France playing the same kind of position, 1.6 dribbles per game isn't more than the others although he does win a couple of freekicks.
However he does have slightly more key passes than for example Sangare, Veratti and Auoar. At the same time these are generally short passes as he plays less long passes than these players so probably not as often using expansive and range finding passes like Carrick would sometimes do. Probably just good medium or short range passes into attacking players in good areas who can then get their shots away