I have an ASUS Zenbook OLED with a trackpad.
Even though this trackpad is fine, and mouse pointer movement is a good speed, the two-finger scroll is just too darn fast.
In the settings app, I can only set the pointer movement speed, not the scroll speed.
In the gnome-tweaks app, there is nothing to set the scroll speed either.
The only thing I could find is a hack that is far too drastic. (preloading a lib, and on-the-fly hacking the input events.)
A 'libinput measure' run was of no help.
I cannot find a libinput quirk attribute that would let me control scroll speed.
OS: Ubuntu 22.10
laptop: ASUS ZenBook UX325EA
$ sudo libinput --list-devices ... Device: ASUE140A:00 04F3:3134 Touchpad Kernel: /dev/input/event6 Group: 6 Seat: seat0, default Size: 129x64mm Capabilities: pointer gesture Tap-to-click: disabled Tap-and-drag: enabled Tap drag lock: disabled Left-handed: disabled Nat.scrolling: disabled Middle emulation: disabled Calibration: n/a Scroll methods: *two-finger edge Click methods: *button-areas clickfinger Disable-w-typing: enabled Disable-w-trackpointing: enabled Accel profiles: flat *adaptive Rotation: n/a ...