I live in a small city in a rural area of the midwest that has a handful of grocery stores. We had two locations of a pretty good regional chain that offered what I would consider a broad enough selection of items, but several years ago they were acquired by a national chain and the selection was greatly reduced. I've been to that chain's stores in larger cities and they had a much wider range. Honestly I think they just made some (IMO) unfortunate value decisions when scaling down for a smaller market.

Other grocery stores in the area each seem to have one thing they're really bad at: one is known for their terrible produce, another refuses to carry specific common items or brands, another is highly variable in what items they carry at any given point in time (regardless of recent shortages).

It's certainly a modern marvel that we can have access to all of this food concentrated in one convenient place, I don't mean to diminish that or the work involved in getting it there. But I do think it's a space in which most if not all of the players (in my area, at least) could use some improvement.