We can use the MatchIsTouchpad to change those settings the way we want. Most secure way would be to include extra file or files in /usr/share/X11 or if the file writing approach is not a go, use directly xinput set-prop what should fire up every time user logins.
For me it is not the same. I usually change xorg config. Since we now use libinput:
Section "InputClass"
MatchIsTouchpa d "no"
Identifier "My Mouse"
Driver "libinput"
MatchIsPointer "yes"
Option "AccelProfile" "flat"
EndSection
We can use the MatchIsTouchpad to change those settings the way we want. Most secure way would be to include extra file or files in /usr/share/X11 or if the file writing approach is not a go, use directly xinput set-prop what should fire up every time user logins.