For confused folks, no this is not how Canadians package their peanut butter, although yes the milk bags are real, IIRC this is actually a thing that happens in the Carribbean for locally packaged peanut butter because it’s cheaper than the jars are in the US and Canada.
Hmmm, it being wrapped in a flat usually indicates being repackaged from larger foodservice sized containers, which my own experience with West Virginia food desert grocery stores has led me to understand is common in some areas.
I’d expect fresh ground to be oily-er too, enough that stocking it upright like that wouldn’t be a great idea.
The package isn't resealable, either. That's just shady, pricing it so high, and making the consumer pay more for resealable packaging is just next-level greed.