Alright so hopefully my last update, I unmounted the dataset ("zfs unmount /mnt/documents_ha/Documents") and oddly even though appeared to completely successfully with no errors, it still shows in ZFS List like it did before i ran it, but now the actual data is all visible again! Really not sure what to think now though haha. But the Dataset must have been sitting on top of it. Now to find out if that dataset still exists.
Alright so the end solution ended up being, remove the dataset by unmounting it, rename my folder to "temp" and then recreate the dataset and move my data over to that folder which brought the disk space used calculations in alignment. Oddly the only other thing I needed to do was stop sharing the share, and then put it back to private to get it to show in Windows SMB again. Otherwise it was not visible or accessible via Windows.
