Utils/Runtime/PhysicsEventManager.cs

using UnityEngine;

namespace Utils
{
    public class PhysicsEventManager : MonoBehaviour
    {
        private void Awake()
        {
            Application.quitting += OnQuitting;
        }

        private void OnDestroy()
        {
            Application.quitting -= OnQuitting;
        }
        
        private void FixedUpdate()
        {
            App.InvokeFixedUpdate();
        }

        private void OnQuitting()
        {
            App.ClearFixedUpdate();
        }
    }
}