Final status: We've reverted the change and confirmed with some customers who reported the issue that impact has been mitigated.
From a non-mobile device, please rate this post and submit it in the textbox. Select 'View' tab in Outlook -> 'Show Focused Inbox' Admins could have disabled the Focused Inbox feature at the tenant level using the process described here: We'd like to get your feedback on the workaround we provided.
More info: While we were focused on remediation, users could have disabled the Focused Inbox functionality. Title: Focused Inbox issue User Impact: Emails were being delivered to the 'Other' tab rather than the Focused tab. Was an on going issue which has now been resolved
