What privacy problems do you see with iCloud? If you choose to encrypt your data not even Apple can access it. If you’re already using many emails than why is giving away an email when you create an account an issue?
Discussion
Well for one to create an Apple ID you need a phone number and for it to stay active. Without that you can’t create or use an account. That’s already a no go for me. So to have an iCloud email they require a phone number.
The issue with giving an email when creating an account is its 100% unnecessary. Look at Nostr for example. Public and private key. Thats all I need.