RE: Network Attached Storage (NAS) 2024 Series - 1

I have realized that File Explorer is the windows app, and have run aground on an inability to sort Workgroup (which I cannot seem to share from) from Homegroup (which I cannot seem to reach from Ubuntu and wants to be where everything is shared in Windoze), and find either using Samba and Ubuntu. I don't know what else I can do, although I will continue to endeavor to ascertain what it is I am not doing right. You have been kind enough to provide guidance that revealed to me the need for Samba, so if you have a moment and the inclination, perhaps you could understand what I have failed to do right, and set me straight.