Schaffhausen used to be where my father stayed during his time as a tiler on assembly work in Switzerland. Nice part of the country with very friendly people around. We often visited the Rheinfälle, since it was just 5 minutes from the hotel where all the workers stayed. The surrounding area with its great nature makes for some nice hiking trips, definitely worth a visit. If Schwyzerdytsch is used, it doesn’t need any Trump or other names: it’s Ryfall then IIRC, spoken with an “ü” instead of a hard y. Even though I audibly chortled at “Rhizzfälle” 😂