Install the Power Apps personal app in Microsoft Teams
[This topic is pre-release documentation and is subject to change.]
A personal app is a Teams application that has a personal scope. Power Apps is by default available for you to select and add to a tab in the Teams channel of your choice. More information: Personal apps
Open Microsoft Teams, and then select More added apps (...).
Search for Power Apps.
Power Apps is now added to Teams. You can access the app in Teams from the left pane.
As an alternative to using the flyout menu, you can select Apps from the lower-left corner in Teams, and then search for Power Apps to install the app.