I have not much to add except agree that Aeromexico is SOOO Bad. As a connectomh airport, MEX is horrible, architecturally as bad as CDG but extremely inefficient. As usual, customer service is non existent and everyone is interacted with seemed to have something stuck up where yo sun dont shine.
Tthey've decided to close all thei lounges at the same time and of course only about half the people whe have access can get in. Waitlist takes hours, abd if you're not back within 5 lonures of getting the whatsapp its back to the back of the line.
Not my first time here, probably not my last. But if you can avoid it, try anything else.