Thank you for your patience. We have released custom domains for Azure AD B2C to public preview.
Documentation can be found here: https://docs.microsoft.com/en-us/azure/active-directory-b2c/custom-domain?pivots=b2c-custom-policyTim supported this idea ·
An error occurred while saving the commentTim commented
Definitely interested in seeing this as a feature; once its available I'm moving all id management to b2c