auto-hided taskbar can be called out when hovered upon in full screen app mode

Let me clairfy. For instance when you full screen a web browser (by F11 full screen mode), auto hidden taskbar can't be called out when hovered upon at the bottom of the screen. This would be especially useful when using a small screen laptop.
An even better additional functionality would be to have an option to only show auto hiddened taskbar on the down right corner area (where notification tray icons are), so it would not be accidentally activated when hovering on app elements that are at the bottom of the screen (for instance, I could imagine, full screen youtube browsing).