

The old iCloud icon in the System Preferences is now gone in macOS Catalina.
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If you haven’t signed in to your Apple ID on your Mac, tap Sign In and enter your Apple ID information.Go to the Apple menu > System Preferences and click your Apple ID.

Quick tips Follow these quick tips to sign in or out of iCloud with your Mac using macOS Catalina and above! Using Multiple Apple IDs on macOS Catalina?.Unable to Accept iCloud Terms and Conditions on macOS Catalina.iCloud Accounts issues on macOS Catalina.
