I think there are two different "clunks" going on.
One is a distinctive sound that can be clearly heard on video.
The other is more of a sensation of a loose suspension component that can be felt in the wheel and pedals, but on video is not obviously distinct from the normal noises the tires and suspension make.
On my 2021 35" - I did not have the first problem but I definitely noticed the second one. On my truck, I believe the second problem was in fact largely due to side-to-side slop in the adjustable accelerator pedal assembly. If you grab the pedal with your hand, you will find that it is solid front-to-back but wobbles side-to-side quit a bit. I was able to fold a section of microfiber towel and wedge it behind the pedal adjustment mechanism in order to brace it. This removed the unpleasant feeling in the pedal and I'm quite happy with the truck now. At some point I will mention this to the dealer as a warranty concern but for the moment I'm just enjoying driving the truck.