"Refreshing" the Desktop seems to rearrange the icons in an orderly fashion, no matter what their last known position was. However, since you mentioned it @RM, I did notice a couple of times that my last added icon showed up (but not the others) after bootup/reboot. Unfortunately I don't recall it having repeated itself reliably, so I can't verify it without further testing. Until then, Happy New Year all!
"Refreshing" the Desktop seems to rearrange the icons in an orderly fashion, no matter what their last known position was. However, since you mentioned it @RM, I did notice a couple of times that my last added icon showed up (but not the others) after bootup/reboot. Unfortunately I don't recall it having repeated itself reliably, so I can't verify it without further testing. Until then, Happy New Year all!