Philipp, I'm using Cinnamon instead of Gnome and the option is still present.
Anyway I guess you could try Ubuntu Tweaks to change this property or simply set the option by editing the configuration file installed with the package (I think it should be "/usr/share/X11/xorg.conf.d/90-libinput.conf") and adding the following line inside the "InputClass" section:
Philipp, I'm using Cinnamon instead of Gnome and the option is still present.
Anyway I guess you could try Ubuntu Tweaks to change this property or simply set the option by editing the configuration file installed with the package (I think it should be "/usr/share/ X11/xorg. conf.d/ 90-libinput. conf") and adding the following line inside the "InputClass" section:
Option "NaturalScrolling" "true"