That’s probably it. It might be the case that you’re on X11, but using libinput instead of evdev (long ago it used to be that Debian and openSUSE Leap used evdev instead if I’m not mistaken).
So the right configuration for you should be the libinput one Logitech Marble Mouse - ArchWiki (with ScrollButton “9” of course).
Edit: Yeah, you’re using libinput, as per