Outlook May update adds shared calendars and Copilot

Before this update, anyone switching between classic and new Outlook faced inconsistent calendar views and had to manually add shared mailboxes each time they moved devices or accounts. Coordination across teams stayed fragmented because calendar data lived in different places depending on which client someone opened. Now the gap narrows, but the underlying problem remains. More calendars surfacing automatically increases the volume of events people must scan without reducing the actual coordination work required to decide what matters.