BG do not stop eating natural food when they are provided supp feeding (pellets). It just means more food for all. The biggest limiting factor in most waters is not enough food for the existing mouths .

Anytime the food supply (food web) is reduced be it all natural or lots of pellets or fertile water you are going to have lots of problems unless you reduce the fish biomass (harvest) to match the food web.

No doubt that more food means more fish biomass (not necessarily just bigger fish but also more). Population quality requires harvest mgt and water quality as well.

Not sure if this answers the questions but is supp food for thought.