As of the 29th May 2020 update of Nova (a full list of Nova release notes can be found here), the Report Designer has now been re-named the Report Center. The name change is to actively reflect what it’s all about; the center of where your reports are.
With a fresh name comes an updated user interface. Reports are now set in drop down lists, giving a more compact layout, making reports easier to find.
You are now able to search for specific reports using the search bar at the top of the user interface, making it simple to find a specific report.