/usr/share/dbus-1/services/org.fcitx.Fcitx.service is in fcitx-bin 1:4.2.9.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [D-BUS Service]
Name=org.fcitx.Fcitx
Exec=/usr/bin/fcitx
|