When on ArcoLinux you can set your touchpad with the gui of XFCE settings or keyboard shortcut

CTRL + ALT + M.

This will work on Xfce and Openbox. If you want to have this solution on i3 you will need to delete a hashtag in the config file.

When you are on ArcoLinux with any of the possible desktops you need to check this page. https://wiki.archlinux.org/index.php/Libinput.

Some of the desktop environments provide you some kind of settings manager for your touchpad and in others you will have to make a configuration file for your touchpad in

The content is up to you but could be something like this.

If libinput fails to work on your hardware, you can also have a look at this wiki page but it is NOT encouraged.