Indeed. I grew up in a cultural milieu that was overwhelmingly Slavic (Chicago suburbs, mostly Czech and Polish but smaller numbers of Slovaks, Slovenes, Croats and Serbs) and even within that, the lack of understanding of distinctions was surprising (so many people thought Slovak and Slovene were the same thing, which isn’t helped by the fact that the countries have very similar flags since independence and near-identical demonyms in their own languages) although I would note that the Slovenes, Croats and Serbs were all highly aware of the distinctions between themselves and even as cultural self-identification as specific Slavs in Chicago has faded, there’s still a low-level hostility between Slovenes/Croats and Serbs.
I don't know how large the Lithuanian community in Chicago is, but when I lived on the South Side in the late 90s there was an amazing Lithuanian restaurant called just "Healthy Food", a weird amalgam of traditional Lithuanian cuisine and hippie wheat germ and molasses-based fare. They also sold amber jewelry, as well as their own swag like "I ♥ Kugelis" T-shirts. Anyone remember that place?
I’d never been there, but there seem to at least be multiple Lithuanian restaurants in the Chicago area. Sadly, while there were literally dozens of Czech restaurants when I was a kid, now there are three.
Chicago has been shrinking for decades and it's tragic. Even in the 90s there were whole blocks on the South Side (I lived in Back of the Yards) that were just abandoned.
