In short, If in Arch, just instal AUR https://aur.archlinux.org/packages/goodix-gt7868q-dkms
And all is done.
You can firstly try click on touchpad, iff failed manually installing drive is needed (see #original-solution below)
We definee CUST_QUIRK as 60-system-thinkbookG6p-lenovo.quirks in directory: