I just bought a brand-new 2023 TRD ORP. The dealer said it does not have KDSS but it also absolutely does NOT have a squishy suspension. This suspension feels firm and planted and it drives more like a big car, far more so than my previous S10 platform 1998 GMC Jimmy, which is smaller but very much feels like a truck. I feel no major leaning when turning (this 4Runner corners far better than the Jimmy) and no major nose dipping when braking. But as said, the dealer said it doesn't have KDSS and the VIN inputter thing people have mentioned above doesn't list KDSS for it. And unfortunately (for this), it has a push button start, so I can't just turn on the electricals to see the KDSS light if it has it. I could swear it has KDSS from how car-like it feels while driving and from what I have read of the non-KDSS, where everyone talks about how "squishy" and "boat-like" it is and how it has "terrible" body lean and nose diving when turning and braking.
I have read about what to physically look for underneath, but am still lost, so will post up some pictures tomorrow.