I'm not sure specifically what you want to know.

I resupplied food in towns along the way. And while in town, I had a hot meal there. Also consider that resupplying is often not done in an actual town, but in a convenience store or whatever is closest to the trail.

Backpackers typically only cook dinner, and those get repetitive, so forgoing those with the added benefit of not carrying a stove, fuel, and a pot is sometimes nice. Some people find it wearisome to not have at least one hot meal a day.

Of course, I have done countless backpacking trips and have cooked on most of them.