How to retrieve OS and graphics card information on Linux

Hi, do you know how to retrieve the OS and graphics information on Linux? I tried FPlatformMisc::GetOSVersions(OsVersion, OsSubVersion); , but this one works on Windows only. On Linux it just returns “GenericOSVersionLabel”, and seems Engine\Source\Runtime\Core\Private\Linux\LinuxPlatformMisc.cpp is not implemented at all

https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformMisc.cpp

Thanks.