A partitioned France really just is not likely and largely misses the point. Germany was divided because it started the war. Korea ended up divided, sure, but the factors there were unique and the peninsula had been Japanese at the start of the war.
If nothing else I can’t see de Gaulle ever allowing this.
Very true; certainly the
Parij POD isn't feasible, or not without serious earlier Allied screwups and/or better strategic planning and logistics on the Germans' (esp. Hitler's) part--neither of which is really plausible even from a "soft AH" standpoint.
The only real way
I can currently see a divided France happening is if, somehow, after the 3rd Republic's defeat, the "French State" had been established as a (still obviously puppet) junior partner in the Axis rather than an "armed neutral" as with Vichy, and
maybe joining in Barbarossa, whether officially or just with far greater military support beyond the LVF and other individual collaborationist units. Either way, such a change
might tempt Stalin towards continuing on after Berlin, or at least demanding a greater Soviet role in overseeing postwar Western Europe; he's overrun the other European Axis states (apart from Italy) by that point, and taken more losses from "a second French invading force" or some such line, so the logic (to him) for that maybe isn't too farfetched. Of course, all
this depends on the Allies acting towards France as they did in OTL, which is
very unlikely if the country goes full-on Axis member.
There's a
What If? 2 essay that touches on a Soviet-backed "Red France": Basically, it starts with a Halifax gov't coming to power in 1940 instead of one under Churchill, which leads to an armistice where France is occupied only as far as Paris, and there's no energy in the country as a whole for any further fighting (despite de Gaulle's efforts). As a result, Hitler has more resources and better timing (April 1941) for Barbarossa; Britain only goes to war against Japan, separately from the U.S., and neither of these powers provides
any aid to the USSR. Germany is still crushed, albeit by 1946, at the cost of 40 million Russians, and Stalin decides to just keep going for the rest of Hitler's conquests from Norway to Paris, all the way down to Rome, with the help of Communist resistance movements; the ending has him celebrating May Day 1946 at Versailles, and already thinking about going after Francoist Spain, while anti-Communists like de Gaulle are purged. Far-fetched even for AH, but entertaining reading.