Interview done. I emailed Jonathan McDowell @planet4589 to ask if he had info on a possible reentry, and he immediately found it, and even had the ground track already calculated! Thank you for this meticulous tracking, Jonathan! (Because the satellite companies sure as shit aren't sharing this info!)
It was a Dragon Trunk from the Axios 3 mission, reentered on Feb 26. The reporter is going to send me contact info for the farmer who found it, so at least I can tell him what it is.