As the subject says. According to this: https://support.apple.com/en-us/HT201684, they should. However according to the man page for launchd.conf. "launchd.conf is no longer respected by the system."
Setting "umask 077" in /etc/launchd-user.conf should be forcing the default file creation permissions to 600, and folder creation to 700, but it is not doing anything.
Has anyone else seen this/have any ideas?