I ported Goost Engine's LinkedList into a GDExtension for Godot 4.1. You can find it here:
https://github.com/awardell/GdExt_LinkedList

It is mostly unchanged from the C++ files Goost has, with just some header location changes and compilation fixes.

I have barely tested it and haven't profiled it at all, so use at your own risk! If you hit any bugs, please feel free to open an issue.

The instructions are all elsewhere, but to use this you'll need to:

  • Update the godot-cpp submodule
  • Build godot-cpp
  • Build the extension

Hope that anyone finds this useful!