France has a very powerful presidency because of that rotten De Gaulle, and relies like all strong-presidency republics, on nobody calling the bluff and pushing the limits of that power. Macron is doing so in order to prevent the formation of a left-wing government.

Link given in the comments here, in english, easy to understand and very interesting (I learned things even if I'm French): https://threadreaderapp.com/thread/1827474244856365440.html

• Macron lose to the left alliance
• Call for truce during Olympics
• Olympics are finished since 2 weeks, still no decision made except "not those guys from the left LFI party"
• Find all kind of dumb excuses to reject left prime ministers candidates
• LFI ask if they guarantee not one of them will join the government, would you finally accept the global left prime minister (Lucie Castet) ?
• Unintelligible mumbles
• ???
• Profit