revival/game/Assets/Scripts/Settings/PlayerPrefSlider.cs

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

[RequireComponent(typeof(Slider))]
public class PlayerPrefSlider : MonoBehaviour
{
    private Slider _slider;

    [SerializeField]
    private PlayerPrefValue _playerPref;
    
    private void Awake()
    {
        _slider = GetComponent<Slider>();
        _slider.onValueChanged.AddListener( _playerPref.SetFloat );
    }

    private void OnEnable()
    {
        float value = _playerPref.GetFloat();
        _slider.SetValueWithoutNotify( value );
    }
}