If you are talking about device backup, apple had it encrypted before Advanced data protection.
If you are talking about other data, Google don't have it encrypted even today.
If you are talking about other data, Google don't have it encrypted even today.
Not end to end: https://www.wired.com/story/apple-end-to-end-encryption-iclo...
https://support.apple.com/guide/iphone/back-up-iphone-iph3ec...
https://support.apple.com/guide/icloud/view-and-manage-backu...