Anyone know where PowerApps are physically stored?
In PowerApps, data is stored in a data source, and you bring that data into your app by creating a connection. The connection uses a specific connector to talk to the data source.
When you create the Service Desk template, it will show a suggestion bar where you could click on the “Make my own app” button and choose your own connector as the data source of this app:
So if you choose to use a cloud storage connector as the data source, then the data is stored in cloud.