Battle of France may have been close, but that was because it was rather short and France was sitting on big stock of equipment that it built up during 1919-1940.
Germany, on the other hand, had a much shorter time to prepare, but alreday managed to match France in terms of equipment and greatly outmatch in terms of airforce.
France would also hit a real problem of needing to retool it`s production lines mid-war since it`s major tanks were old, and their design was stretched to the limit, while Germany, since beggining of 1940 would mostly produce Pz3 and Pz4 new models of which, were clearly superior and had far greater upradability than French tanks, like R-35, H-35 and S-35.
Germany also had far bigger population, and almost twice larger economy.
Unless France get`s serious help from GB, it should be very uphill battle the longer the war goes.
They were still regarded by many as having the most advanced or strongest army in the world in the interwar years. But so many resources were tied up in the Maginot line.
Well, it definitely was such at least till 1938 or more probably 1939, after which Germans were arguably better in terms of organisation, and equipment as a lot of French equipment was old, artilery in particular, while German one was newer mostly.
Or maybe it actually was Soviet army for large part of pre-war period.