See the following link for steps to enable/disable the automatic creation of a TEAMS meeting with each new meeting created in Outlook.
https://support.microsoft.com/en-us/office/schedule-a-teams-meeting-from-outlook-883cc15c-580f-441a-92ea-0992c00a9b0f#bkmk_makeallteamsmtngs
Note! The instructions provided in the link above are to ENABLE the feature. If you want to turn it off, uncheck the setting in the last step.
For Outlook on Mac
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In the top toolbar, click Outlook and then click Preferences.
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Click Calendar, and then under Calendar options click Configure next to Add online meetings to all events
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Select your preference to automatically add a TEAMS or Zoom meeting for all new meetings you create. Click Save