If you do not want to install Microsoft Teams android app, for privacy, security, or other concerns (e.g. allowing your organization administrator some control on your mobile), with this app you can connect to Teams using the Microsoft Teams web interface.

This app will act as a Desktop web browser, and not share your location, the fact that you are connecting from mobile, your device information or any other information with Microsoft Teams and your organization administrator.

It is not perfect, as Teams web interface is limited and the sandbox it runs is also limited.

It works for Teams chat, calendar, and other apps, so it is good to stay connected, but you cannot join Teams meetings, nor make calls nor upload or download files on your mobile or receive notifications (that also means Teams and organization administrator cannot access your camera, microphone and phone data storage...).