The Elysée diplomatic advisor's office in deep crisis and under external audit: top officials accused of abusive behavior and chaotic management, described by fleeing staff as "the Ceaucescu's” or the Thénardiers (from Les Miésrables). https://www.elle.fr/Societe/News/L-audit-qui-embarrasse-l-Elysee-3887586

A detailed follow up investigation in Le Monde confirms most of the allegations against the diplomatic advisor's office, and connects them with E Macron's declaration to the ambassadors' conference in 2019 “We too have a deep state” https://www.lemonde.fr/international/article/2020/10/26/diplomates-au-bord-de-la-crise-de-nerfs_6057355_3210.html

New addition to this thread provides more grist to the accusations of arrogance and unprofessional behavior in Elysée.
‘Foreign ambassadors and other diplomats in Paris have complained about what they describe as “rude” and “arrogant” treatment’ https://www.politico.eu/article/emmanuel-macron-diplomacy-tension-turf-wars-burnouts/