Thank you for following up on this and I apologize for the delayed response!
When it comes to your App Registration not displaying the Publisher verification section - I wasn't able to reproduce your issue within my MS Entra ID tenant, but I was able to within my B2C tenant. If you're trying to complete the publisher verification process, please keep in mind that
this feature is not supported in Azure AD B2C tenants.
For more info - Publisher verification Requirements.
I hope this helps!
If you have any other questions, please let me know. Thank you for your time and patience throughout this issue.
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