>>2428137>can't you just use what's on the ground? just break off branches with your hands?Snap a thousand small twigs instead of throwing a few proper logs on each hour?
Small stuff goes up quick, you need a lot of it.
The pro move is definitely to get some downed saplings or mid-sized limbs and just feed them in as they burn up. Much less cutting required, though it's messy for your site, or hybrid.
Still, you need to cut those down to manageable sizes. Sometimes you can find a couple trunks to wedge them into and snap with leverage, sometimes they're a bit too big or lodged into the ground as part of a larger deadfall and need cutting.
Better to just make several cuts Instead of wandering about looking for appropriate deadfall (and you shouldn't be camping in areas with lots of it, as they're clearly prone to widowmakers).
If you're at an established site, the surroundings might have been picked clean of fuel, and you'll need to haul it in from farther away, perhaps through thick brush. Processing it into something manageable is key there.
A folding saw is 9oz, even an UL kit can swing that. A hatchet is like 4#.
If you like campfires and aren't a masochist, just bring a saw.