If I saw that there was a Walmart in town, I perked up. Consistent, low-priced and large number of grocery items. Likely better than an unknown, variable, often poorly stocked local grocery (or worse, groceries at a gas station/convenience store).
I also liked seeing the economic diversity of customers that I wouldn't see at home.
In larger cities, I'll choose other groceries if I can for better selection, if not better prices.
Of course, except for maybe Sprouts, all the places I shop emphasize ultra-processed corporte interests.
Eggs, aside from some of the disease issues are also a very good, nutritionally complete source of protein that are relatively inexpensive.
Another issue is that people have been conditioned to eat/snack all the time... a lot of people have moved towards 2-3 meals a day which is closer to historical norms... have protein be your main source, with vegetables as a side, and maybe bread/pasta at some meals.
There are also beans/legumes if you can tolerate them.