Germany, we do have a few fountains (but they are really uncommon and would have more in common with a normal tab and sink then the american fountains I’ve seen). I’d usually just fill up my bottle from a sink at a bathroom when I’m on the go.
I never considered this was a difference, interesting! For a lot of years in school I didn’t use a bottle and relied on the fountains exclusively. Also, the bathrooms usually always had the motion activated faucets that just spray warm water with no temperature controls so using them for drinking water wouldn’t work. I’m starting to think the way this works in NA might be somewhat overly complicated lol