https://bugzilla.redhat.com/show_bug.cgi?id=1568365
--- Comment #1 from fujiwara tfujiwar@redhat.com --- I cannot reproduce your problem. Which locale do you use? If you use non-CJK, ibus-daemon is not running by default and you need to use im-chooser.
(In reply to Bernie Innocenti from comment #0)
On the same system, ibus-daemon starts normally from the Gnome Shell session.
Yes, GNOME has a different logic and ibus-daemon always runs whether you use or not.