On Outlook web, click the Settings button and turn off the “Focused Inbox” toggle switch.On the new Outlook app for Windows 11, select the account, click the “Setting” button, and turn off the “Focused Inbox” toggle switch.
To turn off Focused Inbox in Outlook from Microsoft 365, 2021, or 2019, click the “View” tab and click to clear the “Show Focused Inbox” option.