How do I stop the Monday email, or get push notifications on my phone?

The Weekly Email Report toggle is the Monday morning numbers email; switching it off stops that email and nothing else. Push notifications are a separate toggle on the same screen, and they only work once DeskOps is installed to your home screen — in a normal browser tab there is nothing to deliver to. Once you have allowed push, DeskOps cannot switch it back off for you: permission belongs to the browser, so revoking it is done in your browser's site settings.