Dolphin cannot see Steam Controller gyro axis [Linux]

[Glacial]

I cannot figure out how to get Dolphin to see the gyro of the Steam Controller for motion emulation. It can see evdev/0/Wireless Steam Controller, and it can technically see all other inputs, but no gyro axis, only the usual analogue triggers and so on. There's also some odd interactions with Steam/SC-Controller that make it unreliable when it can see the controller directly (i.e. not the virtual 360 controller) or not. This was tested with multiple Dolphin builds since the feature was apparently added, Ubuntu 18.04.3.