Show attributed even if associated products are not available

Good morning, I need to show all the attributes of a product, even an attribute has no available products (making it non-clickable or crossing it with an x), I attach an example.

See screenshot: https://prnt.sc/wb2qQ7lDMJdE

This is what I created: https://prnt.sc/51XiH8WaIct6
I would like to do something similar on the product catalogue.
Thank you.