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”.
I’m from Europe and have gone to Spain several times but have no relation to it. I started learning Spanish through duolingo which teaches Mexican Spanish with tú/usted/ustedes and just stuck with it. I have a vague understanding of how vosotros works but couldn’t use it in a conversation. It’s a bit funny at this point because I’ve also learned the conjugations for vos and the “Chilean” vos but still no vosotros even though I’ve only ever spoken Spanish in Spain.