French Culture in a Nazi Victory TL

I was looking at Wikipedia's biographies of Yves Montand and Jacques Prevert and I noticed that the era of World War II and Nazi Occupation seemed to have been entirely skipped over. This got me thinking: if the Nazis somehow won World War II, how would the French (and Parisian in particular) cultural scene be affected? How would figures like Jean-Paul Sartre, Picasso, and of course Prevert and Montand develop in Nazi France?
 
it will not much left over of France and it's culture, if the Nazi win WW2
young Yves Montand had a good career in Vichy france, so he will have similar career in post war France, but not a political one!
People like Jean-Paul Sartre, Jacques Prévert or Picasso would life in danger, to be hunted down and Kill by SS or French counterpart organization.

Apropos SS, Heinrich Himmler wandet transform east France into a autonomic SS State of Burgund
And install a counter pope in Avignon (some insane Idea of Himmler to destroy Roman Catholicism in Europe)
it's certain that the autonomic SS State of Burgund, would be "Germanized".
Means the French are forced to speak German and life the Nazi version of German Culture.
if this happen also to rest of france, i don't know
Some source tell that Hitler wanted that all europeans speak Germans, others tell that only the Nazi occupied area had to be "Germanized"
here we come again to Yves Montand, will he try to sing in German or will left France over Algiers ?
 
It depends when the war ends - if it's a negotiated peace in mid-1940 after the French collapse, and the Russians somehow stop being a problem or miraculously collapse in the winter of 1941 after a successful *Barbarossa, then Vichy will remain in place and the laws, precedents etc set out by the OTL Laval-Petain regime would provide a good basis for this discussion.

If it's some later war turnaround, after Vichy was 'dissolved' (de facto), then the more bonkers plans of people like Himmler, as Michel Van said, might come into play, and then it's not a good time to be a French artist, or indeed a Frenchman.
 
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