/usr/share/applications/i3.desktop is in i3-wm 4.14.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [Desktop Entry]
Type=Application
Name=i3
NoDisplay=true
GenericName=A dynamic tiling window manager
Comment=improved dynamic tiling window manager
Exec=i3
X-GNOME-WMName=i3
X-GNOME-Autostart-Phase=WindowManager
X-GNOME-Provides=windowmanager
X-GNOME-Autostart-Notify=false
|