In unmodified form, things you feel through the steering are:
LfS is all mechanical SAT, with just the odd bump thrown in the mix.
nK delivers pneumatic SAT, mechanical SAT, and you also get a pretty good understanding of what's under the tyres. From what I drove spot on in regards to FF.
rF is bumps, canned effects (there, I said it) and some more weird stuff they try to sell as tyres.
iRacing is bumps, bumps, then some more bumps, and way back in the distance there might be some tyre forces. It's like a whisper in a storm - if you concentrate hard enough, you might hear it...
What I'm saying is: I doubt that having my wheel almost pulled out of my hands on the LRP front straight is even close to right. In relation, the most pronounced thing you should feel through the steering is in fact SAT (both mechanic and pneumatic). My old car was without power steering, and I never felt bumps even close as hard as SAT was... In fact, most bumps I felt in my hands (not talking about buttocks) only because the SAT changed... Something is just iffy, right now it's the suspension coming through the wheel rather than the tyres... If the new tyre model changes that, wonderful... I'm not expecting that radical of a change though...