Untitled

using UnityEngine;
using UnityEngine.SceneManagement;

public class PhysicsSimulator2D : MonoBehaviour
{
    private PhysicsScene2D _physicsScene2D;

    private void Start()
    {
        Scene currentScene = gameObject.scene;
        _physicsScene2D = currentScene.GetPhysicsScene2D();
        Debug.Log($"PhysicsSimulator2D started in scene {currentScene.name}");
    }

    private void FixedUpdate()
    {
        if (_physicsScene2D.IsValid())
        {
            _physicsScene2D.Simulate(Time.fixedDeltaTime);
        }
    }
}