UK- we don't boil water here unless there's an issue with the pipes. I got told not to drink the water in places like Spain and Italy as it could make me unwell, but not sure if that's as big a deal now.

I got told not to drink the water in places like Spain and Italy as it could make me unwell

This is total BS, if anything, tap water is considerably better in those countries.

Source: I spent a considerable amount of time in all the countries you mentioned