Hello,
The Microsoft Teams calendar is closely tied to the Outlook calendar since both are part of the Office 365 suite. That's why when you create a Teams meeting in Google Calendar, and it syncs to your Outlook calendar, it may not automatically appear in your Teams calendar if the synchronisation between Outlook and Teams encounters issues.
Sometimes, there can be a delay in synchronisation between Outlook and Teams. Waiting a few minutes can often resolve the issue if it's simply a matter of the systems needing time to sync.
Ensure that you're signed into Teams with the same account you use for Outlook. Discrepancies in account information can cause sync issues.
Verify that your Outlook is properly configured and that there are no issues with your Office 365 subscription, as these can affect synchronisation.
Use third-party synchronisation tools or services that can bridge the gap between Google Calendar and Outlook more seamlessly. Some tools are designed specifically for syncing calendars across different platforms, but it’s important to consider the privacy and security implications of sharing calendar data with third-party services.
As a manual workaround, ensure that any Teams meeting created in Google Calendar is also created or replicated in Outlook to ensure visibility in Teams. This can be somewhat automated by using Outlook rules or third-party services, but it's not an ideal long-term solution.
Hope this helps!
Warm Regards, Ozi