Dear M. Shane Stecher,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
Based on your description, I understand that you have a query "Teams Add-in not showing in Outlook."
I'm sorry to hear that you're experiencing this issue. Have you tried enabling the Teams Meeting add-in manually? Open Outlook and click on "File" in the top left corner > Click on "Options" and then select "Add-ins" > In the "Manage" dropdown menu, select "COM Add-ins" and click "Go" > Check the box next to "Microsoft Teams Meeting Add-in for Microsoft Office" and click "OK" > Restart Outlook and see if the Teams Meeting option appears on the ribbon.
If this doesn't work, you can try repairing your Office installation by going to "Control Panel" > "Programs and Features" > right-click on "Microsoft Office" > select "Change" > select "Repair" and follow the prompts.
If the issue persists, please let me know and we can explore other options.
I hope the above information will be helpful. Please feel free to let me know if there are any updates or if I've got you wrong. If still have any concern, please let me know so I can provide further suggestion.
Sincerely,
De Paul | Microsoft Community Moderator