Why the insistence by everyone that there cannot be a hardware foundation for a feature being listed to answer the question? The OP didn’t specify there could be no hardware basis for the difference, they just asked what you can do with an iPhone 14 that you can’t do with an iPhone 13 because they are curious what the difference is between the two phones. Every difference in what iOS 16 can do on the 14 that it can’t on the 13, except the new wallpaper, is based on a hardware change. Eliminate those and there is no point to the question or the answers.