The Austrian Adolf Hitler spent a few years just over the border in Passau in youth before his parents moved back to Linz, but there are no signs there bragging about it. He spoke the Southern Bavarian dialect which is used in north Austria and southern Bavaria (there are apparently many German dialects).
I got onto that topic because, having recently returned from that part of the world, I was checking out the Anschluss, the 1938 "joining" of the short-lived Republic of Austria (short-lived since the Hapsburg's Austria-Hungary fell apart after WW1) with Germany. From what I have read, this event was welcomed by many Austrians - but what do I know? It was certainly not welcomed by the Jews of Vienna.
The Anschluss is part of the story of European - and American - appeasement of aggressive expansion and control. Not a shot was fired and a vote, of sorts, provided some legitimacy. Today, the EU is trying to do it, but with paper not armies.
The history of Europe, since Roman times, is one of things being pulled together, then coming apart. It will be the same with the EU. Anschluss.