Is there a way to add default content or a default tab for all users in Teams?

[John Quile]

We have some training material for Teams and wanted to see if there was a way to add a default tab to all Teams or pinned message to a webpage that has newcomer information on using Teams.

[#2]

Build something using app studio and SharePoint. https://m.youtube.com/watch?v=WyB4MBQwICs

[#3]

Take a look at Team templates: https://docs.microsoft.com/en-us/microsoftteams/get-started-with-teams-templates