How do I turn off Focused Inbox Outlook?

Select the View tab.
Select Show Focused Inbox.

The Focused and Other tabs will disappear from the top of your mailbox.

Note: If you don't see the button, your version of Outlook might not include this feature. We often release new features to members of the Insiders program first. After that, we release them via updates to your Office programs. You can always check for updates by selecting File > Office Account > Update Options > Update Now.