Yes, France's birth rates have until recently been higher than their neighbors'. It's not clear whether policy, or culture, or differences in economic structure, or immigration differences were primary.

An example of policy would be explicit subsidy of child support. Culture might be preferring to live in villages rather than cities. Economic structure might be lower housing costs for child-bearing families. More of France's immigrants may have been female, whereas Germany got mainly male immigrants/Gastarbeiters, etc.

France's total fertility rate fell below replacement around 1980 and it is still below replacement.[1] So if policy makes a difference, France is not trying hard enough.

1. https://population.un.org/wpp/Graphs/Probabilistic/FERT/TOT/...