Unified Groups File location path on SharePoint
Problem: Unified Groups or Office 365 Groups create a hidden site collection on SharePoint used for file storage. The Site is Accessible to users through One Drive interface. The site is created under the managed path /sites/. It create confusion for users and administration and limit the choices in the namespace.
The sites for unified groups should be created under a new manage path /Groups/ and administration rights should be given SPO admins by default.
closing this item since its no longer relevant to how 0365 group works. please review https://support.office.com/en-us/article/learn-about-office-365-groups-b565caa1-5c40-40ef-9915-60fdb2d97fa2