When spoken? Almost certainly. But I think they mostly write in Hochdeutsch, especially in formal contexts, at least that I've seen (private chats/etc are a totally different matter), so I don't foresee any major issues there.
Austrian standard german is slightly different from the German variant, even when written. The differences are pretty minor, though, so it’s very possible to have a relatively long text without being able to tell which one it actually is (especially when potatoes are not referenced in it).