Old thread, but also experiencing this in a 2022 6.4 with 4.10s, 7000 miles on the truck
I have felt it consistently since day one. Light throttle acceleration about 30mph - 3rd and 4th gear - while MDS is bypassed with gear selection. If you have ever driven a manual transmission, it feels similar to being in too high a gear at too low an RPM, but it's very subtle.
In the same gear range, I can frequently feel my torque converter unlocking when coming to stop, so I have attributed the stutter to that as well. I also read on this forum of a flash being released in early 2023, but I don't believe that has happened. I was at the dealer last week and no mention of an update when I inquired.