From the Okta Admin Dashboard > Security > Identity Providers > Add identity provider: Adding Entra ID through the "SAML 2.0 IdP". Adding "Microsoft IdP" as OpenID Connect. Okta as IdP. To make Okta the IdP for Entra ID, a WS-Fed integration with Office365 is needed as the information from 365 is mirrored in Entra ID. Requirements: More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.