Thanks for the feedback.
Here is an article on how to create this manually.
https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/embed-teams-app#use-context-from-teams
We are looking at ways to make this easier in the future. To help with the designing the feature it would be great to get some specific scenarios that you are trying to accomplish.
Thanks,
Rich Dickinson
PM Power Apps
Can you outline with any more specific scenarios you are trying to handle?
Thanks for your feedback - You can use the Azure Data Lake Storage Gen2 connector in Dataflows: