Do I really need INotifyPropertyChanged?

I suspect that INotifyPropertyChanged is overkill for what I would like to achieve.
I need:

• to display a list of strings in a ListBox (the 5th column in the attached picture that is not working yet)
• to allow the user to edit each ListBox Item and set the status of the contained string (Accepted/Rejected) through the associated CheckBox
• when the button "Confirm" is clicked, to get access to the ListBox Item strings and the associated Checkbox to save to a database the strings that have "Accepted" status

The ListBox (5th column) is defined as follows:

Questions:

1. Do I need InotiftPropertyChanged to read the edited strings displayed by the ListBox when the Button "Confirm" is clicked??

2. Do I need to define the set of strings as a List or as an "ObservableCollection"??

Thank you in advance