Incidentally, the existence of the word "Hispanic" puts a point on how useless "Latinx" is as a term in English, as we already had a gender-neutral term. Makes sense that people would want to warp that one too.
The two do not mean the same thing, although in the US the Venn Diagram of people both apply to is close to a complete overlap, but for example Brazilians are Latino but not Hispanic, and Spaniards are Hispanic but not Latino. Incidentally this is why I've heard some wokesters argue why "Hispanic" isn't OK, because it includes Spain the evil colonizing country. Which of course is something that virtually no Hispanic/Latino people (using the slash here to cover people who fall under both categories) in the US or Latin America care about now.
Didn't think of Brazilians not being Hispanic. My mom makes a big deal out of claiming to be Hispanic, being half Spaniard, which is something I have always found intuitively odd.
The thing I've notices through my exposure to Latino culture is how much pan-Latin identity is not a thing people from there care about. People from the Coffee Belt of Colombia are aware of there existing a region called Latin America that they share with Rolos (people from Bogotá), Venezolanos, Peruanos, Chilenos, and so forth, but they instinctively see their differences as being much more important than their similarities. They do think Americans are more different, but the idea that they share one struggle would be baffling to them.