Deleting iCloud
how do I delete apps permanently from my iCloud account or can I delete the account and start over with a new account?
iPhone 13 Pro Max
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Apps will stay linked to your Apple ID and can only be removed from the device but not from your purchase list.
Hiding purchases would be an option:
Hide purchases from the App Store - Apple Support
If you create a complete new Apple ID none of the purchases from your old Apple ID can be downloaded again or will show up in your personal settings.