Overstaying in the US

Anywhere else, less strict. Still can be problematic yes. And of course depends on the circumstances

Its tru for Schengen visas too. Overstaying a day because of a cancelled flight is enough to deny future visas, they are very strict. It depends on the country you are applying to, and from. There are also exit requirements, like having to leave Schengen from the same country you arrived in.

hate to break it to you, but this isn't accurate