It says you can use AAD or IdentityServer as OIDC providers, but the doc goes on to explain how to do it yourself with Entity Framework storing user data in a D

It says you can use AAD or IdentityServer as OIDC providers, but the doc goes on to explain how to do it yourself with Entity Framework storing user data in a DB and the open source Microsoft.AspNetCore.Identity hooking it into the app. It would be odd if they only gave like Cognito as an example (especially considering AAD is free). And I didn’t know people really used IdentityServer as much in new apps, there’s other ways to do that.