Welcome @Dre9872 
The most appropriate way to install software under Arch / EndeavourOS, is from the official packages.
To install software from the official packages, you would use pacman (replacing somepackage with an actual package name) :
sudo pacman -S somepackage
If it’s not available there, as is the case with this particular software you’re trying to install, you might then check the AUR. Turns out, it is there.
AUR > new-lg4ff-dkms-git
To install things from the AUR, you use yay :
yay -S somepackage
So to install the Logitech Force Feedback module, you would:
yay -S new-lg4ff-dkms-git
Now before you do that, you need to make sure you have your kernel headers installed, because a DKMS module (which this package is), needs to be built into your kernel, and that’s done using the kernel headers.
For example, if running the standard kernel, you just need to make sure linux-headers is installed:
sudo pacman -S linux-headers