Merge users? Use 2FA and ODIC for same user?

[pro-sumer]

Recently discovered Dockhand. First I created a user using username/password and added 2FA. Then I added OIDC (Pocket ID). Unfortunately I ended up with two users (with the same email address...).

1. Is there a way to merge them?
2. And is it even possible to have a user with both password/2FA and OIDC?
3. Does it even matter now that I'm using DISABLE_LOCAL_LOGIN=true? (Maybe delete the username/password user?)