Just FYI, you can set those notifications to be ‘silent’ (not displayed on the top) and to collapse into a thin line each—in the system's notification settings.

Just FYI, you can set those notifications to be ‘silent’ (not displayed on the top) and to collapse into a thin line each—in the system's notification settings. The apps still keep running, however I haven't figured out whether this change affects the frequency with which the background service is called by the system, and thus synchronization delays.