Evergreen's "Collaboration" testset checks a number of standard applications that are integrated into most IT workplaces.
For example, a test of the basic functions of Skype for Business (send message and file, change status, call user, send file) has been integrated.
We recommend setting up further collaboration applications (Teams, Sharepoint, Outlook, etc.) with your company-specific configurations and policies in order to guarantee an adequate depth of testing.