Comment 1 for bug 1766480

The settings you refer to are intentionally disabled by default, because they conflict with modern clickpad usage. But they are still available if you want to turn them on.

To enable edge scrolling look in:
 Settings > Devices > Mouse & Touchpad > Touchpad > Edge Scrolling = ON

To enable button areas:
 1. Install package 'gnome-tweaks'
 2. In Gnome Tweaks > Keyboard & Mouse > Mouse Click Emulation = Area

You may also be interested to try the alternate touchpad driver (only works in Xorg sessions) by adding/removing package 'xserver-xorg-input-synaptics'.