Are there also logic gates that fill all possible areas (or fill none for that matter)? Would that just be True and False?

Edit: apparently they are called the Tautology (always returns True) and Contradiction (always returns False) gate.

My OCD does not like that it’s called XNOR instead of NXOR.

We need to add more gates such as, maybe, don’t know, and ask your mother

Is anyone annoyed by the fact that it is XNOR (exclusive NOR), where it would have made more sense by being NXOR (not XOR)?