I am a French speaking Québécois and do work with many French people (downtown Montreal). You can't deny that the French French and Québécois French uses a lot of different words. They are still the same language for sure, but we often have so much fun exchanging funny expressions.

A funny anecdote was when I was working with a guy name Jean-Nicolas and all the Québécois people called him Jean-Nic. That was very funny to the French guys hehe