Giving an update to my story, after waiting a month to get it into the suspension tech, and then some diagnostics on their end, they have ordered a new set of rear shocks. I believe that the fronts also make some noise but hopefully it will help/remove the severity of clunking in the meantime since I believe the rears were the worst of the set of four.
Side note from my end, I have a '22 outside of the build date range and my dealer still was able to diagnose the issue without the SSM, but had it in my back pocket just in case!