From Gallup: American language and terminology evolve, as do the terms certain groups use to refer to themselves.
Most Hispanic adults (57%) say it does not matter to them whether Hispanic or Latino is used, though nearly one in four (23%) prefer “Hispanic” and 15% prefer “Latino.” Few expressed a preference for “Latinx” (4%). If they had to chose, 57% would chose Hispanic and 37% Latino.
A Pew poll in 2020 showed that only a quarter of Hispanics knew the term “latinx.”