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* deleting files from iCloud.com also removes them from your device.* Apple gives iCloud storage PRIORITY over your device storageIt is confirmed that at least 500 photos can be selected and deleted at once using iCloud.com web interface. This is not a hard limit as more may be possible, however 1000+ is not possible.Once you've reclaimed your privacy by removing everything you wish to have deleted from iCloud.com storage, you can disable iCloud Storage for photos on your iPhone device.* [https://support.apple.com/en-us/102179 How to turn off iCloud Photos]This was tested on the iPhone 6 OS version 12# Go to Settings, scroll to the top and tap where you see your name with the description: "Name, Apple ID, iCloud, iTunes & App Store" and tap in this location.# Tap in the second area of boxes on "iCloud" which should be just above "iTunes & App Store"# Near the top tap on the toggle to toggle off "iCloud Photos"# You will be promoted to "Remove from iPhone" which is asanine, however, Apple gives the cloud priority, therefore you will have to tap "Remove from iPhone" or the storage will remain active.After doing this you will probably find that your photos from the past remain on the phone storage even though the verbiage of the disable process makes it sound as though they will be removed.