riffer this is the only way I have gotten it to work for me so I stick with it.
In Zorin, I'm able to use Dolphin to access my NAS (DiskStation415) under Other Locations,
and having done that, I can mount one or more shares with their context menus.
Since it lists these Linux shares separately from the Windows network, I'm sure it's using nfs for the Solus installations that it also discovered and SMB for Windows, although I didn't install and configure SMB.
My original goal was to access them all using nfs shares that I've defined in /etc/fstab, and which are all mounted with a mount -a command from the terminal. That way, they're all available in Dolphin (or Nautilus, or Caja, or whatever) without needing to mount them individually each time the OS is restarted, as after an update.
But I've found no way to do that in Zorin. As you say, there may be another way to do it in Zorin, but I haven't found that way so far. It normally requires installing nfs-utils or nfs-common, which I haven't found in the repo. Nor have I found /etc/fstab in Zorin. 😃