“LatinX” was indeed the first attempt at a gender neutral description. “Latino” is still considered by many native speakers to be “neutral”, but the most feasible solution I’ve seen popping up is the “latine” (as in “estudiante”, “vigilante”, etc). Since it uses an explicitly non-gendered suffix, it is more correctly inclusive than the “latino”. It will take a while though, und until it is really widely adopted.