Include both hands on "Use the tablet left-handed" page
I don't use a tablet but...
It seems like when you have a page called "Use the tablet left-handed" that the left-handed users are handicapped second class users that needs more help then the "normal" right-handed users.
So instead of:
Use the tablet left-handed
Switch the Wacom tablet to Left-Handed Orientation.
It might be:
Use the tablet with left or right hand
Choose between Left-Handed and Right-Handed Orientation.
https://gitlab.gnome.org/GNOME/gnome-user-docs/-/blob/master/gnome-help/C/wacom-left-handed.page