Confused of Caumont! If you live in UK it can be done online, I think. Otherwise you cannot.
My UK licence is registered at my son’s address in UK-we were ‘home-less’ whilst we house hunted in our Hymer Motorhome.
For me, I understand I will get a French Licence for the rest of my life & not have to prat about with medicals every 3 years like I had to do in France.
So, God willing, all good news