To rock the idea of 'snow dogs' = plushy fluffy I present Keegan's momma Roo. She was the
#3 Siberian Bitch US and
#10 over all Siberians last year. She does not work in harness, past generations behind her did but were not short on coat. She's a very correct bitch, but if you want to get right down to it her biggest fault is that coat.
Vs Keegan's sire Jack who is a Sled Dog titled working dog, which means he at minimum has achieved 100 competitive miles in harness, who you can see is a more plush coat.
Or pretty much any of Karen Ramstead's working Siberians. No one would ever accuse these Sibes of lacking coat