It seems that the UI overlay on map views are generally quite ignored in favor of the actual map controls, even if the UI is "on top of" the map.
A good example is a right click - it doesn't matter where you click (entity browser, tutorial hints, weather settings), the map context menu will always be displayed.
Another example is a mouse wheel - when in map (and game master mode), the mouse scroll will always initiate map zoom, even when the mouse is positioned over a scrollable entity browser. And here the entity browser actually DOES scroll, but so does the map.
It's not a big deal, but could mess up some future mods that would like to implement more complex UI for map screens.