async functions always finish on a background thread

while (isRunning)
{
  ProcessEvents();
  Update();
  Render();
}

while (isRunning)
{
  ProcessEvents();
  Update();
  Render();
}

foreach (var task in tasksThatShouldBeContinuedOnMainThread)
{
  if (!task.IsCompleted) continue;
  // can use task.Result here in a non-blocking way because its already completed
}

foreach (var task in tasksThatShouldBeContinuedOnMainThread)
{
  if (!task.IsCompleted) continue;
  // can use task.Result here in a non-blocking way because its already completed
}

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
    });
}