How SQL Server Mobile Report could retrieve on-premises company data in Power BI Mobile apps

My questions above mainly to clarify whether accessing SSRS using ADFS via Web Application Proxy running on Windows Server 2016 in mobile device would involved any cloud based services from Microsoft as company has high concerns to publish privacy data to cloud & currently we do not use the Azure AD.

So we only traget below :

1. Have a visualize tool to create dashbaord to be viewed in mobile device, then the reports hosts in SSRS 2016 on premises server within company network.

2. Data is truly hosted on premises within company company network

3. Ensure mobile device to access on-premises reports (may be dashboard) do not take use any cloud services  

Many thanks for information !