Hmm... you could probably construct this yourself. Make a new database for the new auth method, then set it up to automatically open the 'core' database (which essentially just saves the decryption key in the new database): https://keepassxc.org/docs/KeePassXC_UserGuide.html#_automat...
Re:KeePassXC 2.6.4 Released
by 17a9f4a4f4e5b3f on Monday February 01, 2021 @02:44PM
(#25992770)
Wow! Didn't know that was a feature, neat idea thanks!
One thing I'd like to see is one file being able to be unlocked via multiple keys so for example my desktop could use a password+keyfile whereas my laptop would need password+hardware key, but they both backup to the same file. Do any other managers enable this?