We have a very, very basic HR portal website that doesn’t need a username, just a password. This is used for accident reporting and holiday booking.
It’s amazing how many people don’t/can’t use it because they “can’t log in”.
We’ve had it for a good five years. I set my password on day one, saved it in my Keychain, and have logged in 100% of the time since. I’ve literally never had a problem accessing it.