Add your Desktop and Documents files to iCloud Drive - Apple Support
Turn off Desktop and Documents
When you turn off Desktop & Documents Folders, your files stay in iCloud Drive and a new Desktop and Documents folder is created on your Mac in the home folder. You can move files from iCloud Drive to your Mac as you need them, or select all of your files and drag them to the place you want to keep them.
- From your Mac, go to Apple menu > System Preferences > iCloud.
- Next to iCloud Drive, click Options.
- Deselect Desktop & Documents Folders.
- Click Done.