With the increase in cloud computing, which should result in an equal increase in focus of discovery request.
Microsoft 365 allows users to create files only in the cloud, which would result only in a .lnk file locally.
LNK is a file extension for a shortcut file used by Microsoft Windows to point to an executable file. LNK stands for LiNK. Shortcut files are used as a direct link to an executable file, instead of having to navigate to the executable.. LNK files contain some basic properties, such as the path to the executable file and the “Start-In” directory. LNK files use a curled arrow to indicate they are shortcuts, and the file extension is hidden (even after disabling “Hide Extensions for Known File Types” in Windows Explorer).
Has your current E-Discovery vendor discussed this topic with you? If not, you should ask HIM.