OK. I work with families who move overseas and back again.
Your daughter is going to struggle. Massively.
First, I would not do this unless she is onside, and even if she is, it is going to be really hard.
a few years ago I helped a family, French mother, English Dad who moved to France. Son was 12, already spoke French, but not at school level. The first year was, for him, hell.
Your daughter is going to need massively amounts of supoprt and help from a native French speaker. From what I understand of the French system it is not very easy to move into if your French is not fluent. If she is clever, and heading for good academic success, that is likely to not be replicated in France, as she is quite old to begin to learn a language for school/exam level.
It doesn't mean it is not possible, it does mean that you need to take a long hard look at how you are going to support your daughter.
Just to compare, I would usually recommend to parents that they only do this with secondary age kids if they either already have the language, or there is an English language school available.