Nope. Background App Refresh has allowed any iOS app to update data between the server and client in the background for more than half a decade.
Apple has discussed scanning photos uploaded to the iCloud Photos portion of their cloud service in the future, but nothing is scanned now.
Google has been scanning everything in in their user's cloud accounts for the past decade.
Also, given Google's reluctance to pay human beings to supervise decisions made by their algorithms, I have zero doubt that Google is turning in users when they have a single false positive.