Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//usr/share/applications/yelp.desktop

 [Desktop Entry]
Name=Help
Comment=Get help with GNOME
Keywords=documentation;information;manual;help;
OnlyShowIn=GNOME;Unity;
Exec=yelp %u
Icon=help-browser
StartupNotify=true
Terminal=false
Type=Application
Categories=GNOME;GTK;Core;Documentation;Utility;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=Yelp
X-GNOME-Bugzilla-Component=general
X-GNOME-Bugzilla-Version=3.26.0
MimeType=x-scheme-handler/ghelp;x-scheme-handler/help;x-scheme-handler/info;x-scheme-handler/man;
X-Ubuntu-Gettext-Domain=yelp