Again - revisit this topic - and I realize things can change and hopefully will.
As it stands now the booster shot has to be administered 5-7 months after the last vaccine.
My second vaccine was administered on 4/6/2021 - the booster was administered on 11/19/2021.
My daughters - each - received a booster shot as well as the two vaccines. I suspect the booster shots were administered beyond the seven months.
I did not realize the French government had this requirement and of course, by the time we travel in 2023 - much time will have passed. I hope we will be able to receive additional shots - if available - before travel but who knows.
I am left to wonder if all my planning has been for naught.