Syncing two Macs from iCloud storage.
I recently subscribed to iCloud to backup the data on my new Air, which was a clone of my old Pro. I included the "Desktop and Documents folders". I'd like to sync the two computers (now that the older one is fixed) but am afraid to turn on "Desktop and Documents folders" because I want the sync to twin all of the newer files from my Air, and not the other way around. Will this safely save/update the newer files?
MacBook Pro 15″, macOS 12.3