internal static async Task GenerateChunkAsync(Dictionary<Vector3Int, Chunk> chunks)
{
    // Any main-thread setup here

    var chunkData = await Task.Run(() =>
    {
        // Execute code on a background thread
        var data = SomeFunc(5);
        return data;
    });

    // add a function to be called by the main thread at some point in the update loop
    Engine.AddMainThreadFunction(() => {
      Console.WriteLine("This should be running on the main thread");
      GL.BindBuffer(...); // This won't work as opengl stuff cant be called from here
    });
}

internal static async Task GenerateChunkAsync(Dictionary<Vector3Int, Chunk> chunks)
{
    // Any main-thread setup here

    var chunkData = await Task.Run(() =>
    {
        // Execute code on a background thread
        var data = SomeFunc(5);
        return data;
    });

    // add a function to be called by the main thread at some point in the update loop
    Engine.AddMainThreadFunction(() => {
      Console.WriteLine("This should be running on the main thread");
      GL.BindBuffer(...); // This won't work as opengl stuff cant be called from here
    });
}