The word potato may have multiple meanings. A type of root is the most common, but calling something or someone a potato can mean a certain appearance or intellect. This renders that target as concurrently both potato and not potato.
This is only true when applying LEM, usually when you use classical logic. And we can't expect "everything" to be studied only by classical logicians. See: https://en.arguman.org/everything-in-the-universe-is-either-a-potato-or-not-a-potato/35422
Potato practically means "thing that is viable for a recipe that calls for a potato" or "thing that a restaurant customer will find acceptable as a potato". I'd be fine being served a sweet potato if I ordered a potato, but my friend wouldn't.
How about a fraction of a potato? If I cut a potato in half, it does not constitute a whole potato and therefore not **a** potato (but rather part of one), but, at the same time, is still made of potato, and is therefore potato. Therefore, it is not black and white.
Assuming the universe is infinite, there are infinite possibilities of "things" existing. Therefore, there is "something" within the universe that is simultaneously a potato and not a potato. "Schrodinger's potato" if you will.