If they sign up for GCP and establish a separate pool Google IDs, probably. Using Okta, Google, AzureAD and On-prem AD as your IdP is a reasonable choice. Usin

If they sign up for GCP and establish a separate pool Google IDs, probably. Using Okta, Google, AzureAD and On-prem AD as your IdP is a reasonable choice. Using all of them is not.