Question important like ever before: Logitech Marble Mouse, Trackball Wayland will probably work with these: Enable with then set button gsettings set org.gnome.desktop.peripherals.trackball scroll-wheel-emulation-button 8 mit: 8=klein links f. Rechtshaender, 9 Kl. re Linkshaender Check results: much more here: How do I enable Middle mouse button emulation? https://help.ubuntu.com/community/Logitech_Marblemouse_USB Arch users look here: https://wiki.archlinux.org/title/Logitech_Marble_Mouse#Configuration_file