Users can't move icons on Desktop wherever they want but in the grid. The grid itself is very large. Reproducible: Always Please, add an option to enble or disable desktop grid in desktop folder view as it was in KDE 4. The grid itself is very large and prevent moving icons close to each other and the result is much unused space. For now I only try Plasma 5 in a virtual machine because of this and it prevents me from migrating to Plasma. And I run Arch you see...
*** This bug has been marked as a duplicate of bug 358990 ***