Badly. Until a few years ago there was a franchise-wide rule that no food could be discounted even if it was close to expiry, so either the staff/owners bought them and ate it themselves, or it went in the dumpster.

Giving expired food to homeless people is not really a thing there either.

It can, but probably not in advance.

It wouldn't make much sense to develop infrastructure around a source of rapidly-expiring food before that source existed. But once the food is there, demand for it will quickly develop.

There's a general theme in policy discussions of people saying "system X has a feature that system Y does not have; therefore, moving from system Y to system X must require a fully-developed auxiliary system to be in place for dealing with that feature before the move can even be considered a possibility". This is complete nonsense; it's what people say when they want to object to something, but don't have any reasons.