Hi y'all,
not sure if this applies to the same GNOME stack problems, I'll mention it just in case:
I would click the ON/OFF button in the tray, select SHUTDOWN and would then be able to select the SHUTDOWN button in the middle of the screen by hitting the TAB key, then hit ENTER to shutdown.
That selection using the TAB key doesn't work anymore since the latest update.
Thanks for all your help!