I’m afraid to change my bitwarden password to something completely brand new very often because it’s a password I have to memorize, and if I make the new password sufficiently complex and unique, there’s a risk of forgetting it. I wish I could create a new password without deactivating the previous password until I have enough experience with the new password to be 100% sure that I will remember it.
LUKS encryption in Linux provides this exact feature. Since my system login is one of the few passwords I memorize instead of storing in a password manager, I find this feature to be incredibly useful and use it every time I change my password. The way it works is it just allows you to add or remove as many passwords as you want at any time. You could have, for example, 10 passwords that each decrypt the master key which ultimately decrypts your system drive.