Xinput will NOT display anything close to any devices I actually have

When sharing output please share the text itself.
Not images of the text.

For how to format things and other tips see this guide

It usually makes sense to also include some system information, ie;

inxi -Farz

As to your (original) issue;

Thats simple enough. An example:

/etc/X11/xorg.conf.d/30-touchpad.conf

Section "InputClass"
    Identifier "touchpad"
    Driver "libinput"
    MatchIsTouchpad "on"
    Option "Tapping" "on"
    Option "DisableWhileTyping" "0"
EndSection

https://wiki.archlinux.org/title/Libinput#Enable_the_touchpad_while_typing