A good question that doesn’t really answer anything is: are the Jews going to Berlin more Ashkenazi (eastern Jews), or Sephardi (western Jews). Before WWII, the Jews in Germany were almost mostly Ashkenazi.
I mention this because Ashkenazi Jews would have many cultural remnants with Germany, eastern Europe and Russia, that the Sephardi would not.
Don’t know. Since the article implies this individual is eligible for welfare, 400 euros a month, I’d presume he has German citizenship as well, or maybe any EU nation is enough. Fun time for a couple years.