Daily Faceoff had him as middle six C. Smaht Scouting has him outside the Top 10. FC Hockey has him as a 2C. Ferrari at THN has profiled him as a complementary player, one who won't be the driver on a line. LWOS looked at the range of scout rankings, and they are anywhere from 3rd overall to somewhere in the teens.
And a common theme across many of the scouting profiles is that he does not have an elite skillset.
From LWOS -
The biggest concern holding Desnoyers back from being an undisputed top-10 pick is his skating. While his straight-line speed is serviceable, he lacks the explosive acceleration to pull away from defenders in transition.
Two comparables for Desnoyers that he should try to model his game after are Sean Couturier (Philadelphia Flyers) and Mark Stone (Vegas Golden Knights). Caleb might not necessarily be as good as either of these players, but the similarities are definitely there.
If the Flyers draft him, of course I would be happy and hope he reaches his absolute potential.