Could not sign out of my iCloud account
I removed iCloud from my phone, but what?
[Edited by Moderator]
iPhone 11, iOS 15
See the article How to delete your Apple ID account - Apple Support
When your Apple ID account is deleted, your account details and the data associated with your Apple ID are permanently deleted from Apple’s servers. You can't sign in to your account, and you won’t be able to access any data, content, or services that were associated with your Apple ID.
If 30 days are not crossed after deleting the account .
What happens if I change my mind after I have requested that my account be deleted?
While your request is being processed, you can contact Apple Support with the unique alphanumeric access code you received, and we’ll help you cancel your request. After your account is deleted, Apple can't cancel the request, reopen your account, or restore your data.