Offer edge scrolling on both sides
Edge scrolling can be enabled with gnome-control-center. However, the vertical scrolling is only on the right side of the touchpad. Please add an option in gnome-tweaks that if edge scrolling is enabled, the use can choose to have edge scrolling also on the left side of the touch pad.
The benefit for users is that they can use either the left or right hand to scroll up and down. Horizontal scrolling is fine to offer only at the bottom as that is not related to being left handed, right handed or ambidextrous.
The option could be offered under Keyboard & Mouse under the header Touchpad. It would be a simple switch called "Edge scrolling on right and left side" and which is off be default.