I connected through CDG just before Christmas on an Air France flight (flying London-Paris-Tokyo).
To be perfectly honest I have never seen such a shambolic transfer and ended up being one of the last passengers to board the Tokyo flight despite thinking I would have well over an hour in the lounge.
There were only two security scanners open and no priority lane.
The lines were separated by tensa barriers but as no-one was moving, tempers were frayed. Eventually people were just ducking under the barriers and pushing in (I witnessed one actual fisticuffs between annoyed passengers). The security staff just shrugged their shoulders and ignored it all.
So while (dare I say it), I rather enjoyed a foray into Air France business the transfer at CDG was enough to make me seriously consider not doing so again - despite the price saving.
PS Not sure if it would be a different terminal/transfer on other airlines.