It states here that French King Louis XIV was extremely ill in 1658:
https://en.wikipedia.org/wiki/Philippe_I,_Duke_of_Orléans#Le_Petit_Monsieur
Anyway, what if Louis died in 1658 and thus his gay younger brother Philippe would have become King of France afterwards?
What kind of a French King would Philippe be?
According to Antonia Fraser's biography of Louis XIV, he fell ill with a sort of camp fever that was cured by giving him cassia (an inferior form of cinnamon) (amongst other things, presumably). Had he died, Philippe would've been king. Which is what's posited in your OP.
Martially, Philippe was the better commander. He commanded the army at some battle, and because he pulled the victory from the jaws of defeat, he earned himself both the praise and the mistrust (unfairly) of his brother. (He never commanded an army again, because Louis XIV was afraid that if the army loved any royal more than they loved the king, it might turn into a Fronde scenario - dauphin and dauphin's son were fine. Orléans was not).
Artistically, France would probably progress along the same lines. Financially they might do better though, since Philippe was a shrewd investor - the foundations for the fortune of the Orléans which first rivalled then surpassed that of the king of France was laid in his lifetime. He was interested in canals and the like - the Canal du Midi (IIRC) was built under his aegis.
However, as always, there's a but. Philippe has been raised his whole life to defer to his older brother (in order to prevent a repeat Gaston (why he was dressed in girls' clothes and deflowered by Mazarin's nephew)). He's a good commander on the battle field, but IDK if that would carry over into the Haut-Conseil. So the chances of an absolutism developing in France is still good, the chances of an alt-Versailles system, not so sure.