OS11.2: KDE refuse to show Desktop

In latest KDE we can add an desktop-panel and use it as Desktop with icons and shortcuts.
I installed a fresh OS11.2 but i keept the old /home
I deletet .kde, .kde4, Desktop and .skel before i installed OS11.2 to get a clean KDE.

The Desktop-panel only shows my Home-dir and if i configure the panel to show “Desktop” it still show my home-dir. I can manual point to Desktop, but all icons shows with full file-name like “MozillaFirefox.desktop”.