What’s harder to get are different types of flour, some of which are fairly regional. For example “Spätzlemehl” is commonly available in the south, but generally unavailable in the north. Italian Tenero 00 flour is only available in select places. Whenever Swiss friends come visit I ask them to bring some Ruchmehl - Standard Swiss wheat flour - as it’s generally unavailable in Germany (unless you order online at your friendly local mill)