Microsoft 365 Apps (OneDrive for Business) - Syncing SharePoint document libraries with OneDrive sync client

Sync SharePoint files and folders: This article provides video and written instructions for syncing your files and folders with your computer. With Sync turned on, you can work with your files directly from your computer's file system. 

Sync SharePoint and Teams files with your computer: This article provides written instructions for syncing your Microsoft SharePoint and Teams files to a folder on your computer and changing Sync settings.