In the latest version, we just noticed that the “Unassigned” tab in portfolio view only shows up if you are not filtering the view. It used to show unassigned tasks no matter what the state of the filter is. Because of this change, our team can no longer look at specific members of a team and see what work needs to be assigned for that team. Being able to see unassigned tasks within a filtered view is an extremely valuable feature for us as we use it to assign upcoming work on our production schedule.
Screen capture of experience: https://www.loom.com/share/5f084868b922416f81b56a6257302312