Hello @ScottM-7356
Azure AD B2C doesn't support WS-Fed as of now. It currently supports OIDC, OAuth and SAML protocols only.
Here is an active feedback regarding this feature: https://feedback.azure.com/forums/169401-azure-active-directory/suggestions/39535987-add-ws-federation-support-to-azure-ad-b2c. Please vote for it.
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