If subdomains are defined for NSPrivacyTrackingDomains, is the main domain subject to communication errors?

In the "Privacy updates for App Store submissions" section, the addition of a privacy manifest file is required for app releases after May 1.

We added a subdomain and defined it in NSPrivacyTrackingDomains, but when we separate the subdomain and main domain as "tracking.example.com" when ATT is allowed and "example.com" when ATT is not allowed would the communication on the main domain not result in an error?

I couldn't figure it out exactly from the documentation or the session, so please let me confirm.

Documentation: https://developer.apple.com/documentation/bundleresources/privacy_manifest_files

Session (domain definition): https://developer.apple.com/videos/play/wwdc2023/10060/?time=387