I am using the Drupal UI to make changes to a site, and I want to update the page that a user sees when they are not logged in. Is that a view I need to create?
If the purpose is allowing visitors to log in from any page they could visit, it is sufficient to show the login block on every page.
There is no need to create a view for that. It is sufficient to visit /admin/structure/block, choose in which region the login block should be shown, and click on the Place block button for that region. In my case, I will place it on the Sidebar region.
After I clicked on that button, I look for User login on the list of blocks, and click on the Place block button to its right.
Then, on the dialog box that appears, I click on Save block.
Anonymous users will now see the login block on any page they visit; logged-in users will not see the login block.