Hola,
I’m a native Spanish speaker from Spain (I live in the U.S., spoke English all my life with a native English speaking father and my English could be better than my Spanish). Since I am Spanish, we use vosotros. While I heard people in the U.S. learn “ustedes comen”, I would say “vosotros coméis”.


Same here. It was always shown or mentioned in class alongside the other conjugations, but we were never asked to memorize or use it.
I’m glad I was at least exposed to it, so it’s not super surprising when reading.