/usr/share/kubuntu-default-settings/kf5-settings/klaunchrc is in kubuntu-settings-desktop 1:18.04ubuntu11.
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 | [BusyCursorSettings]
Blinking=false
Bouncing=false
Timeout=5
[FeedbackStyle]
BusyCursor=true
TaskbarButton=true
[TaskbarButtonSettings]
Timeout=5
|