I don't usually identify as Latino despite my heritage (coming from multi ethnic black and latino background gets confusing), but the "Latinx" label always seemed sort of forced, and I was mostly seeing white folk use it (not to say only they use it, but just giving my anecdotal 2 cents).
None of my Latino friends or relatives use it.
I've worked at a university and heard it used there by folks in academics and in campus life, but never in the hood or with people I know.
It just seems disconnected from the linguistics behind the term "latino", let alone when folks say "lets talk like this", it usually doesnt work. Language evolves constantly, but trying to force its hand often doesn't succeed.
Like, am I just going to speak Spanish ending nouns and adjectives with X's from now on? No. Then why would I for any specific word?
My (then-)patriotic dad stopped calling them "freedom fries" after a week, and I clowned him for it. Reminds me of that, or whenever folks would try to force slang words to exist.
If it catches on, you're weird for not saying it, and if it doesn't catch on, you're weird for saying it. That's just language.