I have a fresh installation of Focal Fossa, 20.04 LTS. I have installed gnome-flashback with apt-get install gnome-session-flashback -qq. Once I log in I see two annoying icons on the desktop: home and trash. There is no way I can get rid of them...

Could someone please provide a tested solution?

I have been trying various options I found on the internet but no luck so far: the gsettings already reports false for the icons, Gnome Extensions seems broken and cannot display anything, Gnome Tweak Tools do not show any option related to icons on the left bar...