In all honesty, I have never fed a puppy differently. Just in the amount and frequency. There is so much more nutritional value in raw that commercial puppy food was never needed. When we got our miniature dachshund, I just fed Northwest Naturals in the frozen cubes. He would only eat 8 to 10 little cubes a few times a day. As he grew larger I added in chicken wings and organs. Since he’s such a picky little turd, he would pick the liver and heart out of the bowl and put it on the ground! So had to get clever and hide it.
Best way to think about a puppy’s diet... wild dogs don’t feed their pups different than what they consume themselves. As long as it’s balanced, they’re fine.
Same goes for raw food vs kibble. Would you, as a human being who is trying be healthy, stick your salad in an oven? Nope! Because that would deplete your salad of pretty much all the nutrition.