"Elle est juste une amie" is a phrase in French Quote written on Adrien Agreste's Magazines in the show Miraculous Ladybug
This is an easter egg with "Elle est juste une amie" meaning "She's just a friend" as Adrien keeps Friend Zoning Marinette

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy