Auth0 and Firebase both let you export user password hashes (though I believe you need to open a support ticket in order to do it in Auth0's case at least).
I think Cognito is actually one of the few with absolutely no path to achieving this.
I think Cognito is actually one of the few with absolutely no path to achieving this.
It actually doesn’t allow a whole shitload of stuff that should be there by now.
For example, it supports passkeys, but has no UI for adding or managing passkeys. You have to build that yourself. In a separate app, on a separate domain.