MicrosoftOkay. This Article worked. https://logiccloudit.com/knowledge-base/outlook-navigation-pane-suddenly-moved-to-the-left-side/
I had to create the String Value as noted in the article and below but it worked. Good luck to all of you. Let's hope MS doesn't "fix" it against our will again.
*** WARNING***
Do not make changes to the registry of your computer unless you make a backup and you know what you are doing. Incorrect changes in the registry settings can make your computer unusable or result in total data loss. Make changes at your own risk.
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Close Outlook, and then in the registry editor, navigate to the following registry key…
HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\ExperimentEcs\Overrides
Locate the “Microsoft.Office.Outlook.Hub.HubBar” string value and set it to “false“. If there isn’t a “Microsoft.Office.Outlook.Hub.HubBar” string value in this registry key, create a new string value in this location called “Microsoft.Office.Outlook.Hub.HubBar” and set it to “false“.
You can now open Outlook again and you should be able to enjoy your Navigation buttons back at the bottom of the screen again.
