In a general IAM product you will have to stick to the same protocol, be it SAML or OIDC when it comes to Single log out (SLO). With WSO2 Identity Server, you can now implement SLO even though the protocol used in the 2nd application is different.
Read our documentation: https://is.docs.wso2.com/en/5.9.0/get...
Try out WSO2 Identity Server here: https://wso2.com/identity-and-access-...