Possibly useful info for anyone arriving/transiting CDG and working out how much time you might need: yesterday on AC872 we parked at one of the old 2A gates, and had to walk down the stairs to get on a bus which took us around the corner to 2B.

So unless you’re in a premium cabin and on the first bus out (we were and it was fine, it added fewer than 10 minutes), you should likely count on an extra 10-15 minutes after the doors open before you would otherwise normally be able to reach the immigration area.