https://bugs.kde.org/show_bug.cgi?id=395470
--- Comment #3 from Chris Holland <zrenf...@gmail.com> --- I forgot to mention I'm using GTK LibreOffice 6.0.4.2 via the "fresh" libreoffice ppa. LibreOffice > About > Version: https://i.imgur.com/mAx10CH.png sudo add-apt-repository ppa:libreoffice/ppa sudo apt install -y libreoffice libreoffice-gtk3 https://zren.github.io/kde/#libreoffice-microsoft-officeword-substitute Just realized I have a ~/.local/share/applications/libreoffice-calc.desktop. Both /usr/ and ~/.local/ have StartupWMClass=libreoffice-calc though. https://i.imgur.com/GrsJBZq.png The only difference in the two files seems to be the keys are sorted. First I tried xprop when the Calc window had finished loading. The only difference with the xprop output when there's a second icon and after I switched desktops to have the icon "replace" the "launcher icon" is _NET_WM_ICON_GEOMETRY which makes sense. Screenshot of Diff: https://i.imgur.com/wWe1a5C.png xprop Output: https://gist.github.com/Zren/8b00b9138eb374ad9005992b749a104c Next I tried xprop when the Calc window was still loading. I noticed the icon goes from gray => green while loading, which means it's definitely loading the generic "LibreOffice" window properties first, before loading the "Calc" icon. xprop Output: https://gist.github.com/Zren/a79246d9f140c7679fa6e5799961ad74 Screenshot of revlevant diff: https://i.imgur.com/LydBIKN.png Screenshot of the exact moment I ran xprop: https://i.imgur.com/wr7gcZ3.png Video of running xprop: https://streamable.com/xzepb Finally I tried to xprop the "splash" window. xprop Output: https://gist.github.com/Zren/6c792b409ddb2d2283cc0e511a7a496d Video: See the end of the previous video. Next, I should try editing the libreoffice-calc.desktop to use "libreoffice --calc --nologo". --nologo Disables the splash screen at program start. -- You are receiving this mail because: You are watching all bug changes.