Any suggestion for above mentioned issue?
ist it /space you want to see?
If yes I porpoise you have to set it as as sub-volume as the home drive is as an example.
You can add x-gvfs-show. That can also be done in GNOME Disks.
See monitor/udisks2/what-is-shown.txt · master · GNOME / gvfs · GitLab
Thank you very much it worked!