SharePoint restrict Download to local computer for members

I think that is a combination of using IRM, Information protection policies, and user levels. there is a sample.. https://www.cloudfronts.com/restrict-download-and-print-option-for-sharepoint-online-document-library/
I'm using IRM and Information protection policies, also in SharePoint, I have enabled the option to restric the sync button to avoid any local download.