I had a 2016 Kawasaki Teryx LE 4-seater. Sold it and bought a new '22 Commander XT-P. I love the XT-P. I have also heard there is some difference between the XT-P and XM-R shocks. I have not driven the XM-R, but I can say this. I have also ben told the XT-P has the best ride in the Commander line. My wife has a couple of minor physical issues and she wanted a softer rider. I have adjusted the shocks on my XT-P some and she has been good with it. It is MUCH softer than my Teryx. We don't ride like "we stole it," which would definitely have some effect.
The XT-P is supposed to be top of the line in the Commander line-up and the shocks are one reason I bought it. For what it's worth, I doubt you will be disappointed with either model. Like I told my wife, "We are not riding on the highway, so you have to expect bumps." There's my 2 cents worth.