Fun fact: your electronic devices that render graphics are completely capable and in my opinion almost certainly do this as well. We use a business version of it at our enterprise and while it is additional software layered over windows, it’s completely imperceptible to the naked eye and I doubt such technology wouldn’t be immediately rolled out as quickly as possible by pretty much everyone at a “top secret” level.
Constant password expiration was/is an attempt to get users to rotate passwords after they themselves have disclosed/otherwise compromised their sign on information or abandoned/orphaned their account. It’s a drag net. A stupid one. But ironically if it was enforced on all active accounts, it’s a drag net that would’ve even saved Microsoft from compromise by the Russians. So it does have it’s uses in some regard, but to be honest it seems like the state of all security and authentication mechanisms is currently in between 💩 and 🗑️🔥 as far as design and intuition goes. Why I need a password manager for 1000+ accounts instead of being able to generate/sign my own cryptographic authentication tickets in an intuitive way is beyond me. Passkeys is getting there, but having used them, I can still definitively say the implementation is unintuitive trash. (https://msrc.microsoft.com/blog/2024/01/microsoft-actions-following-attack-by-nation-state-actor-midnight-blizzard/ )