Forum Discussion
New Teams missing from Outlook
You are not alone.
There is a long thread about this here: https://answers.microsoft.com/en-us/outlook_com/forum/all/new-teams-meeting-add-in-is-missing-from-outlook/8e9531ce-3852-4a5b-ac1f-5a3f5d3bacf0
It appears that uninstalling classic Teams removes the Teams COM add-in from the Outlook (Microsoft 365) client, which removes the toolbar button from the ribbon in the "New Meeting" window that allows the user to create a new Teams meeting.
This is a real problem for people who do not want to use the new Outlook (which has the Teams integration without the need for an add-in).
My workaround for now is to install new Teams along side classic Teams and then use the Teams Admin Center to make new Teams the default for users in our org.
oliverbaty I actually went back to the old teams and had to uncheck the com add on and then close and reopen outlook, readd the com add on and then close and reopen outlook and now its back because I am using the old MS Teams, wow Microsoft no one testing the new teams com add on in Outlook LOL