Version 5.x has been out of support since December 13, 2022, and this corresponding section of the documentation is no longer maintained. We strongly recommend upgrading to a supported version.
As browser requests are made to the protocol endpoints in your IdentityServer, they will be redirected to the interactive pages for the user to see. Depending on the features required, the pages expected in your IdentityServer are:
Additional custom pages that you might want are then also possible (e.g. password reset, registration), and those are typically available to the user as links from one of the above pages.