ulwgl_plugins: ensure no duplicate paths for STEAM_RUNTIME_LIBRARY_PATH

- This ensures that there are no duplicates when the launchers adds its default hard coded library paths ontop of what distributions or other runtime platforms may set via the LD_LIBRARY_PATH environment variable.

ULWGL/ulwgl_plugins.py

@@ -127,7 +127,7 @@ def enable_steam_game_drive(env: Dict[str, str]) -> Dict[str, str]:
             break
 
     if "LD_LIBRARY_PATH" in environ:
-        paths.add(Path(environ["LD_LIBRARY_PATH"]).as_posix())
+        paths = {path for path in environ["LD_LIBRARY_PATH"].split(":")}
 
     if env["STEAM_COMPAT_INSTALL_PATH"]:
         paths.add(env["STEAM_COMPAT_INSTALL_PATH"])