ngraham added a comment.
$ kcmshell5 touchpad kcm_touchpad: Using X11 backend The file on disk is at `/usr/lib/x86_64-linux-gnu/qt5/plugins/kded_touchpad.so` (on KDE Neon and other Ubuntu-based distros) REPOSITORY R119 Plasma Desktop BRANCH mouse REVISION DETAIL https://phabricator.kde.org/D8798 To: xuetianweng, ngraham, #plasma Cc: apol, rkflx, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, mart