I recently upgraded from KDE Plasma 5.26 to 5.27 (I use Kubuntu 22.10)
Since the upgrade destop icons get rearranged on top of the screen.
I moved them to my preference and checked Locked option.
It is quite OK for a while and then it rearranges on top of the screen.
Even if I reboot after checking Locked option and reboot, It shows OK at the beginning but later (can’t specify how much later) the icons lose their intended posion.