The "Search" bar in the header isn't actually a search bar. It only opens a modal window elsewhere on the page that can then be used to search/filter. Why is the search bar at the top visually communicated as a "Search Bar" when it doesn't function as one? I would ask that the team either
update the UX to have the search bar actually function as one with: 1) the search string present in the bar and 2) the relevant content expanding down from the bar instead of in a window somewhere disconnected from this UX element.
-OR-
Don't present the interface visually as a "Search Bar" and a button or other element that is visually indicates it is meant to open another interface.
The current UX makes utilizing the search feature cumbersome, more mental effort, and can cause UX errors when I interact with the elements in a way I expect but which the experience isn't meant for a user to do.