This was an intentional change. You can get the old behavior back with the GNOME Tweaks app.
See the Touchpad section in https://jeremy.bicha.net/2018/02/12/gnome-tweaks-3-28-progress-report-2/
By the way, this issue is also mentioned in https://wiki.ubuntu.com/BionicBeaver/ReleaseNotes#Ubuntu_Desktop
This was an intentional change. You can get the old behavior back with the GNOME Tweaks app.
See the Touchpad section in https:/ /jeremy. bicha.net/ 2018/02/ 12/gnome- tweaks- 3-28-progress- report- 2/
By the way, this issue is also mentioned in /wiki.ubuntu. com/BionicBeave r/ReleaseNotes# Ubuntu_ Desktop
https:/