Might give you some answers
https://steamcommunity.com/app/892970/discussions/0/3192486635076622441/
( Also, how many days does it take to respawn berries, mushrooms, ect?)
respawns twice a day usualy Morning and Evening, also after over night sleep. Or when you leave the area. But they never run out just move around more as different biomes have different berries mushrooms