First, a bug report: If you walk into one of the red mushroom trees from the left or right at the base on one that is only one space away from the wall, you will be stuck unless you cut down the tree at which point it lets go.
It's not likely, but this could lead to a softlock if the player does not have an axe available to chop down the mushroom tree.
This is a very fun game, charming and chill, a great way to whittle away the hours.
I recommend giving the player a chest to place some items so they can clear inventory, also being able to discard items would be a critical addition to make sure they can have space if they really need it in the moment.
Really cool game so far!