Here’s an example from a desktop app:
Note the vertical and horizontal extent of the scroll bars. No matter what you do with them, the title bar and the top menu remain visible, and so does the status bar at the bottom.
Given today’s extra-wide screens, with plenty of horizontal space (and vertical space at a relative premium), it may make more sense to put the menu in its own panel at the left, and the status/navigation in its own panel at the right. But they should each scroll independently.