Microsoft 365, formerly Office 365, is a group of subscriptions offered by Microsoft that serve a variety of functions. These functions include email, word procession, excel sheets, and presentation programs. This suite of applications is found in the cloud and is similar to the Google Workspace cloud applications bundle.
Teams is a unified communication and collaboration platform that combines persistent workplace chat, video meetings, file storage, and application integration. Here you will find documentation on how to install and use Teams and all its features. FDU Documentation and Training