I upgraded from 2010 SR5 to 2022 Trd Offroad. I got new fancy dashboard, push start button, big screen rear and front cameras with panoramic view (sort of grainy, but useable), auto lights, auto high beams, bunch of electronic assists like bling spot check, collision detection and adaptive cruise control. A little better radio and built-in GPS and 110v outlet in the trunk. 2022 4Runner can be accessed from the Internet via Toyota app and record your driving habits and GPS locations, but rumors are that it can be turned off by calling Toyota or pulling a fuse. I got remote start from app and from keyfob as well. That's all I can remember.
From all that new stuff I found really useful new cameras panoramic view - it helps parking between white lines. And cameras of course are better than my old rear camera in rear window, but not really useable offroad due to bad resolution. Well, sort of useful but not for much. For other stuff - I can live without it.
With SR5 I didn't get KDSS and rear locker, but you have it in 2012 Trail. I didn't go for TRD Pro mostly because it has roof rack not compatible with carrying canoe and sound system eliminates some space in the trunk. I think TRD PRo doesn't have KDSS, I found that KDSS is nice - it feels a little firmer on road, but I was fine without KDSS. I didn't see much difference offroad, maybe just didn't get in a spot when it really matters though.