Maybe this one helps.
https://learn.microsoft.com/en-us/answers/questions/420894/dns-conditional-forwarder-cache.html
https://learn.microsoft.com/en-us/powershell/module/dnsserver/add-dnsserverconditionalforwarderzone?view=windowsserver2022-ps#example-2--create-an-active-directory-integrated-forwarder
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if the reply is helpful--