Prevent apps from showing your name
In Settings on iCloud.com, you can see a list of the iOS, iPadOS, and Mac apps that let other users of the same apps look you up by your Apple ID email address. Anyone who looks you up can also see your first and last name.
Note: In some locations, you can use a phone number instead of an email address as your Apple ID.
You can prevent any listed app from showing your name and email address to other users.
Note: Manage Apps That Can Look You Up only appears if you set up iCloud Drive on your iOS device, iPadOS device, or Mac (OS X 10.10 or later).
In Settings on iCloud.com, click Manage Apps That Can Look You Up (in the Advanced section).
To prevent an app from showing your email address and name to other users, deselect the app’s checkbox in the list.
If the Look Me Up By Email list is empty, you don’t have any iOS, iPadOS, or Mac apps installed that use the feature.