I can apparently cd into restricted directories

I have personal user folders that are restricted to everyone but the user.  But somehow some users can still cd into another user's directory, and subfolders, albeit blindly.  I must believe that I am doing something wrong, but I cannot figure out what.  So I am opening this in case there is a major security vulnerability in TrueNAS.

Please also see https://unix.stackexchange.com/questions/609388/why-can-i-cd-into-a-folder-i-should-not-be-able-to-access