Delay in Notification Time
Switching a lot between the english and the german site and therefore refreshing the site quite often I realized how long it takes Duo to ring the little bell up there. Sometimes 3 hours pass, before notifications are delivered. Even logging out and back in again won't trigger them faster for me.
As you can see, this is mostly a discussion to draw the tech staffs attention, but if you've experienced the same phenomenon lately - or more likely all the time up to this point - let me know... =)
Who knows, maybe it is just my laptop being mean ;)