<< I'd like to know which part of Eastern Europe that means.

Not OP, but I can absolutely vouch for local negative sentiment in Eastern Europe. Granted, some of it is a direct result of war in Ukraine ( and a lot of those refugees getting benefits and priority for government services in host countries ).

It is hard for the population in general to get that they are getting a deal, when they don't. Maybe some individual billionaire does, but if anything, it only exacerbates the issue further by focusing anger on that one person.