I used layer pellets when I free ranged. The roosters hunt and forage to dilute calcium. Otherwise we had thin shelled eggs and I lost hens to laying issues. I also had to have oyster shell on the side with my production birds. They needed a lot of calcium to avoid issues. Currently my birds are getting both feeds in two feeders because of chicks (they prefer pellets probably because they are bigger).
BUT I like nutrena chick feed and allflock better.
For flocks that are lighter layers that take breaks, I think allflock works better. But not the production breeds in my experience. I tried, it failed, I adjusted. Good luck finding what works for you.