In south Orlando, there is also a Publix next to another Publix, the point being to keep a competitor from leasing the second location. The Publix roast chicken is even better than the fried chicken.
At my SIL’s in Ponte Vedra, I was told the Publix across the street from the Publix was a legacy of Publix trying a Whole Foods-like concept store chain called GreenWise. The concept was dropped, and in some locations they just rebranded as Publix and stayed open. She said the former GreenWise store has more hot prepared foods.