You might be a bit confused. People in these areas were actually annexed to France, are culturally different and have their own culture (the native, the original one) and speak other languages. Please take note for next time @TerribleMaps
Al mapa "foreign influences" on diu "spanish" ha de dir "catalan".
A més, no és "foreign", és territori català ocupat per França.
A més, falta un mapa de les nacions envaïdes, absorvides i destruides per França.
This map justifies well the "terrible" adjective of your profile name. The "maybe Spanish" foreign influence on the top-right southern French map should be labelled "Catalan" influence.
Fake for the last one. The « maybe Belgian » and « maybe German » zones call it « un petit pain » and are the long forgotten challenger on this national civil war.