Hey @Benjamin Berthelot
If I understand your request correctly, you’d like to provide interview candidates with temporary access to your system (for example, 24 hours) while preventing login via free/social providers like Gmail.
You can use embedded links and configure an expiration time e.g. 24 hrs when creating these links. Then send these links to your candidates via preferred channel e.g. email/sms.
You can update your flow to disable social login providers like Google.