The Zdepth does not support holdouts, which is from a user perspective unpractical. There might be other passes that have the same issue.
It would be good if there is an option to affect certain or all passes by a holdhout. But as a starting point the holdout should affect anything.
See this thread for clarisse: https://forum.isotropix.com/viewtopic.php?f=5&t=3987&p=16601#p16601
Example Arnold: