This is annoying and in a different color to be annoying. It is not something I am interested in since I work on a Surface, that's about as mobile as you can get.
Try hovering with your mouse/pointer over the Name Plate (see image above) until the icon for the pull-down menu shows up. Click on it, to see the activity window and then click the pause button next to LR Mobile.
Thank you so much that works perfectly
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