When planning a migration in ODM, administrators may be unsure whether an M365 Group requires a Teams migration task or a standard M365 Group migration task. Sometimes the SharePoint Admin page shows the site as not connected to Teams.
In Microsoft 365, every Team is an M365 Group, but not every M365 Group is a Team.
Standard M365 Groups (created via Outlook or SharePoint) provide a mailbox and a site but do not include Teams channels/chat unless explicitly enabled.
"Team-ified" Groups have had the Teams service provisioned, creating a specific metadata attribute in the backend (resourceProvisioningOptions).
For a definitive check (especially if the UI sync is delayed), use the Microsoft Graph Explorer.
https://graph.microsoft.com/v1.0/groups/<group-id>?$select=displayName,resourceProvisioningOptionsresourceProvisioningOptions property in the JSON response: