oAuth SSO Registration Notifications not working

Using Concrete / Help
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Concrete 9.4.2; PHP 8.2

Seeing two issues with user registration related to oAuth. I’m using google SSO which itself is working properly. However, for new user registration:

  1. Turning off ability for new users to register is ineffective. User/password registrations are not allowed, but google auth registrations go through anyway.
  2. New registrations do NOT send notifications. New registrations with User/password do send registrations.

It seems like the oAuth configuration is bypassing the registration settings? Any pointers would be appreciated.