Save file libinput-gestures.conf
to .config/
# .config/libinput-gestures.conf
# sudo pacman -S libinput-gestures, default on new ISO
# sudo gpasswd -a $USER input
gesture swipe up 3 i3-msg workspace prev
gesture swipe down 3 i3-msg workspace next
#libinput-gestures-setup autostart
#libinput-gestures-setup start
#maybe reboot
sudo pacman -S libinput-gestures
libinput-gestures-setup autostart
libinput-gestures-setup start
KUDOS
arch linux - How can I make i3wm bind multitouch gesture to change desktop? - Super User libinput - ArchWiki