According to Mark Masters on X, Bertuzzi was asked about his words with Brad Marchand after the game and this is what he had to say about it,
Both forwards play somewhat similar styles of hockey. Some would call it old school chippy hockey, but in todays game the role is commonly known as the "grinder". The job of a "grinder" is to get under the opponents skin, battle for possession and get the puck in any way possible, while still maintaining enough skill to produce at an elite level. Both Bertuzzi and Marchand do all three of these things very well.