Should authenticated users still see the app's public home page

1. What limits the access of a component to authenticated users?
2. What does authorization mean for users who have authenticated?
3. Why do we need authentication a login for applications?

What limits the access of a component to authenticated users?

In its most basic form, applying the [Authorize] attribute to a controller, action, or Razor Page, limits access to that component to authenticated users. Now only authenticated users can access the Logout function.

What does authorization mean for users who have authenticated?

Authentication confirms that users are who they say they are. Authorization gives those users permission to access a resource. While authentication and authorization might sound similar, they are distinct security processes in the world of identity and access management (IAM).

Why do we need authentication a login for applications?

Authentication is used by a server when the server needs to know exactly who is accessing their information or site. Authentication is used by a client when the client needs to know that the server is system it claims to be. In authentication, the user or computer has to prove its identity to the server or client.