This is how most supermarkets (Walmart/Kroger/Target, etc.) in the U.S. look brand new - they're effectively warehouses that sell product directly to customers. Smaller shops and boutiques have finished ceilings that hide the ductwork and such because they're meant to be more flexible commercial/office space, but large stores like this do not, except for specialized locations like electronics, jewelery, or pharmacy, that can be gated off from the rest of the inside of the building for reduced operation and security.
The big box store chain esthetic. Ostensibly about passing value onto the customer (we put a roof over the products, what more do you want?) but probably more about maximizing shareholder value.
For large chains in the suburbs this is totally normal. They're basically warehouses in a sea of parking lots filled with shelves and racks. Sometimes there's carpeted areas in between the tile walkways or displays that go up high enough that it feels enclosed. For smaller or more urban stores, you don't see this kind of construction.
They claim to be cheaper so they can have that drabby distopian look.
In the good parts of town, they look nicer. In the poor parts of town they're legit worse than that.
Fwiw, I'll pay the extra dollar per shopping cart for the superior look of a target. Target is generally cleaner and crisper looking. As always there are exceptions to that rule.
