There's no hunger system, food is just a way for you to heal after fighting or losing HP.

It's very easy to gather and stock up on.

There is a stamina system in place similar to how using the bow on Classic works and restores its self, as well as stamina boosts both temporary and permanently.

For things that break, they are stackable and only take up one spot(pretty much every item is stackable).

I get the concern with weapons, but so far we've only seen the basic easy-to-get weapons like wooden objects which are easily obtainable in combat at the start so you don't need even multiple of them as you can often replace them after a fight.

As you progress you get much better weapons that last a lot longer, apparently there is even weapon and equipment upgrades that come later on in the game.