Not sure if this helps but I flew from CDG's Terminal 2F last November (I'm FB Silver), and I was definitely allowed to use the Sky Priority check-in area. Same thing for my return trip from LIS. Signs at both check-ins said "we welcome Sky Priority passengers, etc. /// We also welcome Flying Blue Silver and SkyTeam Elite". Technically there is priority boarding but it wasn't reinforced in my case. And no priority security or baggage delivery.
Hope this helps!