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”.
Native USA here. My grade-school Spanish teacher was American-Spanish without Vosotros (Only ever using “ustedes comen”)
My high-school Spanish teacher was from Spain, and thus taught us “Vosotros” and its conjugations.