Same issue here in 18.04 using a Dell Inspiron 7373 (2-in-1) and xorg, I can confirm that "gnome-shell --replace" solves the dock issue, but seems that multi touch gestures stop working after that.
This specific issue is not present using Wayland.
Same issue here in 18.04 using a Dell Inspiron 7373 (2-in-1) and xorg, I can confirm that "gnome-shell --replace" solves the dock issue, but seems that multi touch gestures stop working after that.
This specific issue is not present using Wayland.