In our scenario we need an overview of all teamsites and ms teams, a user has access to. So we need a landing page for the user with a listing of all his sharepoint online workspaces. The page /_layouts/15/sharepoint.aspx?v=sites already fulfills most of our needs, but we still need to customize things, like the design, hiding links or, as a bonus, add additional information.
Is it possible to change the sharepoint.aspx site? What are the limitations?