This feature should be marked 'Handle With Care' because it turns SharePoint and OneDrive sync into a real circus! Here's the act: Someone sets up syncing to OneDrive and SharePoint, and then creates a SharePoint shortcut in OneDrive. Abracadabra! Syncing starts to glitch. Meanwhile, they keep working on files, unaware of the brewing chaos. Soon, coworkers start grumbling about not seeing updates, which aren't syncing because the SharePoint shortcut in OneDrive has thrown a wrench in the works. Multiply this confusion by ten or more people sharing the same document library, and you've got multiple local versions running wild on people's computers. It’s like a zoo where the lions have escaped and the elephants are stomping on what's left. Welcome to the greatest (syncing) show on Earth—tickets not required!
Seriously, Microsoft is made a new tenant setting that allows admins to disable the ability to create SharePoint shortcuts in OutDrive. It doesn't seem to remove existing shortcuts users already created. We really need a way in Powershell or a report in the Admin Console to find these shortcuts. Going desk-to-desk is impossible.