RFE: Keyboard shortcut for system (quick settings) menu, and maybe accessibility menu
Feature summary
It should be easier to navigate to the system menu (quick settings) with the keyboard.
A Debian developer who uses a screen reader reported a Debian bug with symptoms similar to #5377. It seems that he usually navigates to the system menu with Ctrl+Alt+Tab to focus the top bar and the Activities button, followed by Shift+Tab to move focus to the left, wrap around to the far right and focus the system menu.
There is something weird and non-reproducible going on with focus management that means that pattern no longer works for everyone (see #5146, #5270, #5377), but I was surprised to find that it's necessary to navigate to the system menu in such a roundabout way: it's a sufficiently important menu that having to get there via Ctrl+Alt+Tab seems more like a workaround to me.
It seems like this would be easier with a specific keyboard shortcut for the system menu. Other items in the top bar have their own shortcuts (Super+S is basically the Activities button, Super+F10 opens the application menu, Super+V opens the calendar/clock/notifications) but the system menu doesn't have its own shortcut.
Neither does the accessibility menu, which seems ironic when keyboard navigation is most important for users with specific accessibility requirements - although I expect that most users will only access this menu while they are setting up the system the way they want, and then rarely or never go back to it, so perhaps quick access to it is less important.
How would you like it to work
A configurable keybinding for the system menu, probably set up by the same code as Super+V, ideally with a Super+something shortcut assigned by default.
Optionally a keybinding for the accessibility menu too.