I followed the suggestion from this page to get the settings working.
https://askubuntu.com/questions/1184211/touchpad-tapping-stopped-working-after-kubuntu-19-04-to-19-10-upgrade/1184212#1184212
I followed the suggestion from this page to get the settings working.
https:/ /askubuntu. com/questions/ 1184211/ touchpad- tapping- stopped- working- after-kubuntu- 19-04-to- 19-10-upgrade/ 1184212# 1184212