no, you don't need nintex form on destination list.
if you don't use repeating section, standard list view or OOTB list view form should be sufficient to see the content.
if you use repeating section, you might need little customization to convert XML into some better readable format, but that still possible without nintex form.
Thanks,
Wouldn't you know it I have a repeating section.
Not every control is connected to a column, therefore that data wouldn't been seen in a standard list, view.
Thinking hat on.
that's matter of design.
as I said, it's possible (if you connect each control to list field).
you have to decide what's better option for you.