Hmm. Okay, hunting I suppose can be a bit OP. Foraging is the real issue, as butchery returns are, well…large animals like deer or bears certainly can and will return quite a lot of meat. It may not be balanced, but that element is at least OP.
Thing is, I get a large amount of my food from grocery store raids, unless I’m specifically doing a wilderness character.
Real issue with butchering and getting all that meat is the fact it’s unrealistically easy to render it indefinitely edible. Keeping all that meat preserved takes time and effort beyond the already time-consuming process of making jerky.
Foraging I will agree is a tad more abundant than expected, though.
Still, for an urban survivor you’d still get an implausible bounty of food, and indeed supplies in general, out of stores and other sources that’d realistically be depleted by the time winter rolls around.