u/Longjumping_Bet_4825

I believe in old cannon the clones all knew about order 66 from the beginning and were just hiding it or maybe they thought it was an order but one they probably wouldn't need to do, but they all knew Palpatine was lord Sideous because when he called them and used his scary evil voice with a big hood on, they all knew who he was.

So now my question is, why do the clone wars clones call him lord Sideous? They have a chip in their head that makes them follow the order sure, but why don't they call him chancellor or sir or something? How do they all know he is a sith lord?