Allow ADFS equivalent of "Windows Account Name" incoming claim (domain\username) transform to outgoing Name ID claim in Azure SAML SSO
I can easily transform domain\username to Name ID from ADFS using the "Windows Account Name" incoming clam. I can also easily transform claims other than Name ID in Azure SAML to join(user.netbiosname\user.onpremisessamaccountname) to achieve the same thing, but this is not permitted for Name ID. This would allow better legacy compatibility for those trying to vacate ADFS to rely solely on Azure AD SAML SSO.
We could use this, too.