What do you mean? There's an official LibreELEC addon that should include the driver and any necessary dependency. Install it directly from Kodi. What do you mean stuck on Kodi start screen, can you see the Kodi main menu? Is it reachable by network? Any logs? Please guys, try to include as much info as possible. I can't do anything about "it doesn't work".
That actually all I can write. I can't ssh to this build, so I can't get you any logs. I can't get into Kodi, cause booting stucks on start screen "Kodi, Just Enough for Kodi" etc.
And in matter of Steam Controller, I did install this addon, but it didn't do anything. RPi sees dongle. Controler can connect to it but thats all at. There is no manual what so ever. So I tried to start xbox emulation from console as mentioned on github, and every time it just msg me back with information "There is no file ..."
Will try to get you something more (logs, errors, msg) if it will be possible.