It's my impression that for a near illiterate user, they won't be able to notice the differences unless they cannot open the document at all. Those differences

It's my impression that for a near illiterate user, they won't be able to notice the differences unless they cannot open the document at all. Those differences crop up once you know enough Word features to notice the difference. Near illiterate users don't use almost any features of Word beyond the bare basics. As an aside, before we moved entirely to Google docs in my job, I used LibreOffice to edit Word documents without major problems.