https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.builder.iisserveroptions.automaticauthentication?view=aspnetcore-10.0
IISServerOptions.AutomaticAuthentication Property (Microsoft.AspNetCore.Builder) | Microsoft Learn
If true the server should set HttpContext.User. If false the server will only provide an identity when explicitly requested by the AuthenticationScheme. Note...
propertymicrosoftaspnetcorebuilderlearn