What does `Delegate.get_Method()` mean in the profiler?

That's really strange, if true.!!

I don't understand why running a job in main thread should cause a reflection call?

For some context, this is what I'm doing: Do you spot something that should cause this?

 public class MyComponent : MonoBehaviour
  {
    MyJob job;
  
    void Start()
    {
      job = new MyJob(); 
      // Initialize native container with Persistent allocator
    }
  
    void OnCollisionEnter(Collision collision)
    {
      int result = GetData();
      // some more code
    }
  
    unsafe int GetData()
    {
      job.Initialize (/* input parameters */);
      job.Run();
      return job.Result[0];
    }
  
    void OnDestroy()
    {
      // Dispose the native container
    }
  }
 
  [BurstCompile]
  public unsafe struct MyJob : IJob
  {
    public float3* InputData;
    public NativeArray Result;
  
    public void Initialize ( /* input params */ )
    {
      // Setup input parameters
    }
  
    public void Execute()
    {
      // some costly vector math operation
    }
  }