We followed transfer signs and didn't have to go out to AF tkt counter. It's been a while, so I can't vouch for "these days". Why not call AF here for information? They certainly have several desks airside. I wouldn't check a bag unless they require you to give it up. I would always allow 2+ hours, pending your seat and exit time off DL flt. Extra time to get a checked bag can make or break your time. DL arrives T2E and AF depart out of T2(add letter). Take a look at CDG diagrams online. I won't be passing thru until Sept. Maybe someone here has more up to date info.