SSO Implementation in ServiceNow - SAML and OpenID Connect OIDC Setup

[AdamSaniS]

Hi ServiceNow experts,

I am still new to ServiceNow. I have follow-up questions when I refer to Documentation: Multi-Provider Single sign-on (SSO)

1. Is SAML 1.1 still supported in ServiceNow?
2. Does version of SAML affect the set-up method? *(SAML 2 Single Sign-on, Multi-Provider SSO)
3. If the organization use both OIDC and SAML, should I use Multi-Provider SSO or SAML 2 Single Sign-on to configure SAML?
4. Is it advisable to use Muti-Provider SSO if I only have 1 Identity Provider for SAML, and I am also using OIDC. My justification is because the setup seems easier and just need xml/url to fill the fields automatically.

Thank you so much for your kindness and knowledge.

Regards,

Adam.