TrueNAS installed and a few steps to setup to let users access shared Samba directories.
- Enable
SMBSamba service inTrueNAS


- Create an user account with home directory and all access permisssions

- Share
TrueNASpool created

Then can access shared directory from TrunNAS in both Windows and Mac:

Make sure there is NO a lock icon on the folder (can unlock the folder in MacOS Finder)