When you set the hide-mode to "No hide" it will mark the area. This will make it harder to place a window behind the dock and maximized windows won't obstruct the dock. This behavior is not intended for other hide-modes.
When you set the hide-mode to "No hide" it will mark the area. This will make it harder to place a window behind the dock and maximized windows won't obstruct the dock. This behavior is not intended for other hide-modes.