We want to have students, mentors, and clients sign up with different workflows.
The Profile module is good for creating separate user account forms that can appear as tabs in their account, or on the registration form.
Multiple Registration lets you set up a different registration form for different roles using form view modes.
Profile is not integrated with Multiple Registration. Profiles are not restricted to role forms.
https://www.drupal.org/project/multiple_registration/issues/3093966
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