If you want to restore deleted files from iCloud, that have been deleted, begin by looking in the Recently Deleted folder on iCloud Drive. Log into iCloud.com using your Apple account and then choose iCloud Drive. Once there, choose Recently Deleted to see files that were deleted within the allotted time frame for recovery. Next, select the files you wish to recover and click on Recover. You may also be able to look at the Recently Deleted area of certain Apple apps like Photos. If these methods fail, try searching for an older version of the files in an iCloud or device backup. Notchox offers data recovery software for compatible Windows and macOS storage devices.
Read more - https://notchox.com/resources/icloud-data-recovery/