This is it. Modern planners use GIS and data analytics to place new stores. In my region Publix and Starbucks are a common thing and usually going for similar demographics, so it's not unusual to often see them in the same shopping plaza. Similarly dollar stores, Walmarts, and Dunkin' Donuts always seem to find a place in the same neighborhoods too (in my experience). Those Dollar & Dunkin' neighborhoods almost never have a decent grocery either.

Something like that happened in my town. A husband and wife owned two Chinese buffets across town from one another both called Hong Kong. They divorced and each kept one, but the husband renamed his Blue Fin. Blue Fin shut down about a year later but that other Hong Kong is going strong.

We had that in my town with Walgreens and Osco Drug. You'd literally see them across the street from each other, and you'd rarely see a Walgreens without its Osco... Then suddenly all the Oscos went out of business and were gone forever. It's kinda amusing whenever I visit the old home town, because there are multiple buildings that still look like no one has taken the buildings over after almost two decades cuz you can still see the outline of the old Osco signs.