We are working on a custom login experience for our partner users where we want to redirect them to a certain community builder page after login. => goal of this page is to allow the partner user to select for which Account he will work so the visibility of certain elements in the community is related to that chosen account.
Edit: rephrased question: How can I get the URL (page reference) of a custom community builder page. Visualforce pages use the syntax Page.SomeRandomName. Does the same syntax exist for community builder pages or should I hardcode it?