Nice game! I like to see 3D games in Godot. I would like to learn doing it.
Game have nice feeling, movement and shooting have some juice. Idea of vendor machine is cool, combining it with bread mechanic make sense. Just like to move and shoot, great job!
What i missing is some music to make game more enjoyable.
Fight mechanic need some rework, maybe some small delay for so player can hide behind tree to keep health. I think there is some nice trick that you ensure that first bullet never hit the player so you keep that feeling of enemy reaction but you give player that extra time to find some coverage.