I hope Kotkaniemi has the hunger to keep getting better. Look at where this kid was at the beginning of last season and where he is today. Talk about a rising stock and he's not even 19 till the off season.
IMO, Kotkaniemi needs to compare himself to the elite vs the best players the Habs have. He needs to set his bar high and stay motivated to be one of the best young players in the league.
The Beliveau comparison is not a bad one. A very committed player to team accomplishments and playing effective at both ends of the ice.
I can't say I have any real insight or knowledge, but his hunger can be likely be deduced by his improvements since July, as well as his own comments about improving and learning.
Now, every rookie is going to say this and most top-picks are going to improve if given the time and opportunities.
Honestly though, and this is something I tell my kids at the start of every season when I coach, "I don't need you to try to be as good or better than <player x> or <player y>. I need you to be the best you can be."
So, Kotkaniemi I don't feel has to compare himself with others and try to be as good. He just needs to be as good as he can possibly be. I just think his best though will be among the best around the league. I think that is the best way to be and stay motivated.