Forum Discussion
Sharepoint team site created from Microsoft Teams to prefix "teams"
Not setting it as default but here's how to create it under /teams/
Create new Site under Other Options
Use the Team template and change Site Address to /teams/
Browse to the site and from the gear select to connect to O365 group
Enter group name. I created the group Internal Dev Team
Create new Team from MS Teams and select create from O365 group then select your group
Your team would be linked to this new address now. The team content will now be under /teams/ for this team. Create other similar teams.
I don't think there is a mechanism to prefix Microsoft Teams connected SharePoint sites. Since everything is about Office 365 groups, you can however control the naming convention of Office 365 groups which dictate how SharePoint sites connected to Office 365 groups are created. Please refer to below article from Microsoft for more details.
https://support.office.com/en-us/article/office-365-groups-naming-policy-6ceca4d3-cad1-4532-9f0f-d469dfbbb552
Additionally, depending on SharePoint site creation policies you can force the new modern team sites to be created under /teams/<teamname>.
The URL is based on the Alias Name you provide. So if you are using PowerShell script to create your Teams. The URL will be created based on the Alias name you might have provided.