[dragonwriter]

> It's mainly used by nonbinary (enby) people of Latin descent in the US who feel like both Latino and Latina are a poor fit.

It may be used that way, and that may be it's original use, but I don't think that's it's main use: AFAICT, the main use is as as a general gender-neutral alternative to “Latino” or “Latina” (i.e., basically equivalent to “Hispanic” or “Latin”, but awkward to pronounce either as an English or a Spanish word), often by people who are neither enby nor of Hispanic/Latino/Latina/Latinx ethnicity.