What is the OpenID Connect configuration URL for GitLab Oauth2?

I am trying to add GitLab as new OpenID Connect provider to my Azure AD B2C and in that one of the field is asking for Metadata url which is basically the https://<domain>/.well-known/openid-configuration URL.

What is the OpenID Connect configuration URL for GitLab? Can’t seem to find it anywhere

Update

To be more specific - Set up sign-up and sign-in with OpenID Connect - Azure AD B2C | Microsoft Docs

The OpenID Connect configuration URL is - https://gitlab.com/.well-known/openid-configuration