ReillyBrogan I'm using X11 + Budgie.
I installed that package and rebooted but controller inputs weren't going through to the game until i used the "sudo modprobe uinput".
Output:
xorg-driver-input-libinput - X11 libinput based input driver
xorg-driver-input-wacom - Input driver for Wacom/Wacom-like tablets
xorg-driver-video-amdgpu - Support for AMDGPU devices
xorg-driver-video-fbdev - Framebuffer Video Driver
xorg-driver-video-intel - Intel Video Driver
xorg-driver-video-nouveau - Alternative video driver for NVIDIA graphics cards
xorg-driver-video-qxl - QXL Virtual GPU for Spice Virtualisation
xorg-driver-video-radeon - Open source Radeon Video Driver
xorg-driver-video-vesa - Generic VESA video driver
xorg-driver-video-vmware - VMWare Video Driver
xorg-server - The Xorg Server is the core of the X Window system
xorg-server-xvfb - The Xorg Server is the core of the X Window system
xorg-xwayland
This is after i did the modprobe command though (not sure if that matters)
Also, another thing i noticed is that the steam-devices package isn't included on solus but is on most other distros.
EDIT: I should also mention that i have steam linux integration disabled.