I feel like this is a bit unfair to draisaitl, he gets discredited for playing with Mcdavid, but Bergeron had marchand, a top 3 winger and borderline top 5 player on his wing, in fact he had the entire perfection line for his offensive peak where he was usually 3rd in production.
Bergerons peak offensive output would be the three year peak of 17-18 to 19-20 where he has 198 in 190, in that same span pastrnak and Marchand have 256 in 218 and 272 in 217 respectively. Going over a larger sample size would only increase the game between the three, so just like how I think it’s correct to not believe draisaitl would be a 120+ RS+PF player, I think it’s fair to think Bergeron would be around 60-70 RS+PF player