EDIT: Maybe I didn't explain my question well enough. I'm wondering if there are any conflicts between the various exYugoslav groups in the diaspora in your countries or if they're integrated into communities.
Obviously you shouldn't answer this question if you just live anywhere in exYugoslavia.
In the USA people don't really mingle between groups, though there's not much direct hostility either. At best you're going to be able to see people be friends "without talking about politics", and at worst it'll most likely be intimidating and negative stares between people. Plus the entire country is gigantic, so there's a lot smaller of a chance people will encounter one another unless living in Chicago or St Louis. Not saying I've ever been negative to anyone because of nationality.
I come from a Serbian family in the USA, just to be transparent about that. I'm really fascinated by this stuff, so I really would like to hear all your thoughts and experiences!