23.2 Release notes state that external pages in dashboards will no longer be able to reference dashboard URLs.
Our organization heavily relies on this functionality for layouts, providing a customized experience for groups to be able to access all of their important information in one spot similar to a landing page via web. This not only streamlines training, but is a important one click selling point for our director +. Groups can customize dashboards with links to all reports, dashboards, forms, etc all in one place without having to have an extended onboarding process.