In the US pie refers almost exclusively to a desert [...] But you see people in the US refer to pizza as a pie all the time, which considering the overall freq

In the US pie refers almost exclusively to a desert [...] But you see people in the US refer to pizza as a pie all the time, which considering the overall frequency (pizza seems more popular than other/actual pie, at least online) would argue against that. As a Scandi, a sandwich is a double sandwich (since a sandwich is open-face by default). Complicated.