I would actually go further. For the most part it makes frightfully no difference. Last I checked, the majority of fiction books out there have ligatures. As do many "professional" publications. Magazines are an odd mix. Last I recall, the expensive ones use them, the cheap ones don't.
All of this is to say that sure, you may notice and be cognizant of ligatures. Most people aren't.
All of this is to say that sure, you may notice and be cognizant of ligatures. Most people aren't.