In my experience the behavior of "Log Out" is exactly the same in Applications menu and Action buttons.
I think there is some error in design. "Log out" does not necessarily log out, if "Prompt on logout" checked: Suspend and Hibernate does not log out session. And "Save session for future logins" setting should be visible in settings.
In my experience the behavior of "Log Out" is exactly the same in Applications menu and Action buttons.
I think there is some error in design. "Log out" does not necessarily log out, if "Prompt on logout" checked: Suspend and Hibernate does not log out session. And "Save session for future logins" setting should be visible in settings.