Designed for Xbox One S v2 controllers over bluetooth.
Full feature support, and confirmed working even through wine/proton games.

For wine/proton games you may or may not need to disable controllers.
See steam proton#DirectInput API for instructions.

Documentation

github https://github.com/atar-axis/xpadneo

Install

pacaur -S xpadneo-dkms
sudo rmmod xpad steamos_xpad
sudo modprobe hid_xpadneo

NOTE:

installs with /etc/modprobe.d entries to disable ertm, and load self as kernel module automatically