ChannelSwitchManager.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChannelTriggerOpt : MonoBehaviour
{
    [SerializeField]
    private string channelName;

    [SerializeField]
    private Transform spawn;



    private void OnTriggerEnter(Collider other)
    {
        if(other.tag == "Player")
        {
            ChannelSwitchManagerOptimized.Instance.SwitchChannel(channelName, spawn);
        }
    }

    private void OnTriggerExit(Collider other)
    {
        if (other.tag == "Player")
        {
            ChannelSwitchManagerOptimized.Instance.SwitchChannel();
        }
    }
}