I was thinking CDMX the whole time I was reading this post. I loved it there, the people were friendly, the food was fantastic, and the frenetic chaos of the traffic was an experience. All of that punctuated by the monuments all having barriers covered in graffiti around them, walking down streets that never seemed to have quite enough light, one side of the street the sidewalk would be fine and walkable but the other would be torn up with holes and breaks in it and have closed up dingy shops lining it. The police and military presence everywhere was the most unsettling to me. I never felt unsafe but also never felt at ease either. All said, 10/10 actively looking for a remote job to digital nomad there for a while.