How KDE plasmashell stores pinned apps

plasma-org.kde.plasma.desktop-appletsrc.txt

/home/nyanpasu64/.config/plasma-org.kde.plasma.desktop-appletsrc

[Containments][2][Applets][5][Configuration][General]
launchers=applications:firefox.desktop,applications:org.kde.konsole.desktop,preferred://filemanager,applications:telegramdesktop.desktop,applications:discord.desktop,applications:sublime_text.desktop,applications:visual-studio-code.desktop,applications:io.element.Element.desktop,applications:org.qt-project.qtcreator.desktop,applications:xfce4-taskmanager.desktop,applications:speedcrunch.desktop,applications:fi.skyjake.Lagrange.desktop,applications:audacity.desktop,file:///var/lib/flatpak/exports/share/applications/org.audacityteam.Audacity.desktop,applications:audacious.desktop,applications:vlc.desktop,applications:BambooTracker.desktop,applications:pavucontrol-qt.desktop,applications:org.freedesktop.ryuukyu.Helvum.desktop,applications:openmpt.desktop,applications:Dn-FamiTracker.desktop,applications:spcplay.desktop

Split up into a list:

applications:firefox.desktop
applications:org.kde.konsole.desktop
preferred://filemanager
applications:telegramdesktop.desktop
applications:discord.desktop
applications:sublime_text.desktop
applications:visual-studio-code.desktop
applications:io.element.Element.desktop
applications:org.qt-project.qtcreator.desktop
applications:xfce4-taskmanager.desktop
applications:speedcrunch.desktop
applications:fi.skyjake.Lagrange.desktop
applications:audacity.desktop
file:///var/lib/flatpak/exports/share/applications/org.audacityteam.Audacity.desktop
applications:audacious.desktop
applications:vlc.desktop
applications:BambooTracker.desktop
applications:pavucontrol-qt.desktop
applications:org.freedesktop.ryuukyu.Helvum.desktop
applications:openmpt.desktop
applications:Dn-FamiTracker.desktop
applications:spcplay.desktop