https://docs.aws.amazon.com/cognito/latest/developerguide/ex... tells me they support these IDPs 1. Facebook 2. Login with Amazon 3. Google 4. Sign in with Apple 5. Open ID Connect providers, and finally 6. SAML identity providers

If we look a bit closer, we notice that the first four use OpenID Connect under the hood. These names are fancy names for OpenID Connect with a little bit of something extra on top from Apple, Google, and so forth.