This is basically for confirmation, but I might be wrong.
If I'm trying to get certain users to use SSO only, I don't need to have them set up a Salesforce password correct?
I'm under the impression logging in through the salesforce log in page and logging in through SSO are two things that don't touch.
When an authentication provider is enabled, Salesforce doesn’t validate a user’s password. Instead, Salesforce uses the user’s login credentials from the external service provider to establish authentication credentials.
But does a user need to have a password at all is my question.