ipa-adtrust-install does not work with an AD administrator in the admins group:
ipa-adtrust-install -A administrator@ad.ipa.test
results in
Unrecognized error during check of admin rights: administrator: user not found
The same happens for AD\administrator and Administrator@AD.IPA.TEST
No error
$ rpm -q freeipa-server freeipa-client ipa-server ipa-client 389-ds-base pki-ca krb5-server ipa-server-4.11.0-5.el9.x86_64 ipa-client-4.11.0-5.el9.x86_64 389-ds-base-2.4.5-3.el9.x86_64 krb5-server-1.21.1-1.el9.x86_64