In addition to the much better exhaust note and rear suspension, I'll add the following. Mind you, these are for a '21. I believe some stuff is missing on the '23.
Wireless Carplay
Actual weather temperature readings on the infotainment screen whether using carplay or not. Temp also shows on the gauge screen
Ability to turn off heated steering wheel without using the infotainment screen
More Fordpass features
AC outlet in the bed
Adaptive headlights
Smoother shifting (Especially in sport mode)
More power. Not advertised, but definitely feels that way
Front parking sensors / more exterior camera views
Higher payload capacity
Damper adjustment on steering wheel
USB C outlets
Fold down shifter with flat workspace
Nifty second glovebox above the normal glovebox (daughter likes to make a snack pantry out of it)
Factory fog/driving lights (Admittedly not the brightest, but still come standard)
Last but not least, as you approach your Gen3, it turns on all kinds of lights to welcome you....if you choose to turn on that option.