Are you sure? I thought I'd read a while back it was a mix of regulars and FFL.
The FFL website lists their deployment in Mali but not CAR. I didn;t see any news articles of them in CAR.
I used to live in Africa and have been following this as closely as anyone could. Unfortunately, the media does a terrible job of reporting on the French military operations in Africa and I can’t confirm or deny that they’re using the Legion in CAR. If the photos I’m seeing are any indication, it appears they may be using a “mix” of Legion and Airborne. I was quite surprised to find they’re airlifting in with the Antonov 124-Condor which is a heavy airlift craft produced, I believe, in Ukraine. The use of that aircraft may well be something of the secret of their success at the moment because of the heavy lift resupply capacity.
To see what they’ve done in Mali, see: Operation Serval at:
https://en.wikipedia.org/wiki/Operation_Serval where it is recited they did deploy FFL Airborne, being the https://en.wikipedia.org/wiki/2nd_Foreign_Parachute_Regiment
I haven’t seen any reports yet from CAR that specifically identify the units deployed.
From my experience, they won’t anymore deploy the FFL individually.............they’re too difficult to control and they have something of a politically incorrect historical reputation in Africa.