Dynamic island is a very obvious difference, it’s a whole new design similar to going from the 6/7/8 iPhones to the notched iPhones. The lay consumer will definitely see that as a big deal
We see it as a big deal, but for the lay person, does it ultimately affect how iPhone works? Not really. It's part of the Pro-series features.
iPhone 6, 7, and 8 had thick bezels and a Home button. The notch to the pill isn't nearly as significant.
iPhone 14 Plus customers are coming from iPhone 7 Plus, 8 Plus, XR, maybe 11. They already see a notch size reduction and flat edges.