Greatly detailed here:

https://youtu.be/odhVF_xLIQA?t=338

In this case, Pepsi has reduced promotions and increased wholesale cost for "small groceries" which in this case was a regional grocer with ~1000 of stores across 10 states. If Pepsi is strong arming regional giants like that, imagine how the ant of a real local grocer feels. They are algorithmically getting destroyed