Is it rude to propose to someone at someone else’s wedding

Yes very. This is not about you. Pick another day.

It depends on the moment I guess. If you're stealing the spotlight from the actual married couple, you're gonna get a lot of hate.

Most likely, especially if you propose to the bride or groom.

If to the fiance / bridegroom /newly husband, yes, a bit rude.

Not too good. It's not your day.

I broke up with someone at a wedding that I attended with one of my gf at the time's family event.. very awesome stuff

rude to women cuz they fictitious scenarios how it's suppose to happen etc

That's someone else's special day. Let them have the attention. Yes, it is rude.

I think it's okay as long as it doesn't affect the wedding anyhow

Nah. A little competitory, but do what you gotta do.

Actually, yes, it takes away from the Bride's day.

Answers will be subjective

Nah, knock yourself out