......... "share entire homes" ........
I didn't try this one myself, so I don't know the settings.
I will try it and come back ................... but that will take some time ...........
............ and now I can access the complete directory structure of the other computer with smb://computer_name
............. to go to the personal user folders in home, I am asked for a username and password. Entering the username .......
And investigate this one ...............
Isn't "personal user folders" part of "complete directory structure"?

As an exercise you can copy an image file from the /home/username directory to /home/samba and see if it is accessible.
And play with the properties of this file.