Since the pandemic I’ve been working from home and that gives me time to take food-shopping off of my wife’s share of the household work. I noticed pretty quickly that every supermarket under the Kroger group was gouging on prices, so when they acquired Safeway I discovered there’s a WinCo in my town. (WinCo is employee owned, has the feel of a warehouse/bulk store, and it beats Kroger/Walmart/Amazon/GoodFoodHoldings stores on price, by a lot. Plus, the employees don’t have the energy of beaten animals and that matters to me for some reason.)
Good on Chicago doing this but there are already alternatives to Walmart and Whole Foods in some places if you look.