Hide Ui Element "or" is not working / conditional visibility

I want to hide a UI element if the value in a ChoiceChips is not X or Y (If it has another value that is not X or Y it should be displayed. (Example: ChoiceChips has values: A, B, X, Y ))

Unfortunately, it is only hidden if I make a condition without the "or". How can I implement this?

Is not working:

Is working: