SPO Powershell: List team sites created manually by a user and not automatically by a Teams group

Hey Giraud965 

I am afraid it would be difficult to tell if a 'Team site' is related to 'Teams' or not just by looking at data from Sharepoint, All sharepoint cares about is the site template ( Group#0) the reports wont show how it was provisioned. Now if you have admin access to the tenant things become easy and you can simply look it up in active groups to know which groups have teams enabled, also via exchange admin powershell you can look at Get-unifiedgroup (Resourceprovisioningoptions) etc., basically you look at the office 365 group and figure out how it was provisioned.