Survey is a Teams app intended for use by corporate/internal communication & human resource departments that enables users to ask series of questions...
Company Communicator is a Teams app intended for use by corporate/internal communication departments to create and send messages to targeted teams or a large number of employees over chat...
Are you currently working with your team on the same documents? Are you chasing people for updates on a spreadsheet for example? Here's how to set up document alerts in SharePoint Online...