@sahilpruthi The Desktop does not offer any refresh mechanism, you could manually refresh and the new data should populate the Desktop report.
In order to schedule a refresh, you would need to publish the Desktop PBIX to the Power BI Service (app.powerbi.com)
I don't have direct experiance with the Data Lake connector, but since it is an online source, you don't need a gateway to schedule a refresh on the data set. You can schedule a refresh of the reports to run up to 8x per day.
