This is a minor annoyance that I also had in Fedora 33.
Still there in Fedora 34.
The lower left task manager has Firefox, Dolphin file manager and Discovert software Center icons anchored, but a blank icon is really Firefox , the Firefox icon is really dolphin and the Dolpin icon is really the Discover software center. I.E. everything is offset by one.
Does anyone know how to fix this?
-Keith