At the time of writing, Gnome has no support for changing the touchpad scroll speed.
This is a bit of a hack but it works.
Tested on Framework 13 with Fedora Linux 41 (Workstation Edition)
sudo dnf install systemd-devel
sudo dnf install -y gcc libinput-devel meson
git clone https://gitlab.com/warningnonpotablewater/libinput-config.git
cd libinput-config
meson build
ninja -C build
mkdir -p ~/.local/lib64
cp build/libinput-config.so ~/.local/lib64
mkdir -p ~/.config/systemd/user/[email protected]/
cat <<EOF >> ~/.config/systemd/user/[email protected]/libinput-config.conf
[Service]
Environment="LD_PRELOAD=%h/.local/lib64/libinput-config.so"
EOFedit sudo nvim /etc/libinput.conf
scroll-factor=0.2
scroll-factor-x=0.2
scroll-factor-y=0.2
logout or reboot
You may still have issues scrolling in Firefox. Navigate to about:config and enter:
mousewheel.default.delta_multiplier_y
Experiement with this value to fix Firefox specific scroll speed issues.
Thanks to Jack Wilsdon for original instructions.