My Jeep is RWD when until I pull the lever and put it in 4wd. I rarely have to do that, despite my open rear diff. There have been a few times when I needed it. Once last winter during one of those “ice storms” I had to stop on a steep hill for a redlight, and couldn’t get her moving again, definitely needed it there. Every other time I used 4wd (on the road) it was purely because I was tired of spinning 1 tire and I wanted to accelerate faster.
This year I have much better tires, BFG AT KOs, instead of the junk factory goodyear POS tires, so I anticipate it will be even better.