ProjectDDD/Assets/_DDD/_Scripts/AssetManagement/AssetManager.cs

using System;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.ResourceManagement.AsyncOperations;

namespace DDD
{
    public class AssetManager : Singleton<AssetManager>, IManager
    {
        public void Init()
        {
            
        }

        public async void PostInit()
        {
            try
            {
                await Addressables.InitializeAsync().Task;
            }
            catch (Exception e)
            {
                Debug.Assert(false, "Addressables initialization failed");
            }
        }

        public static async Awaitable<T> LoadAsset<T>(string key) where T : UnityEngine.Object
        {
            var handle = Addressables.LoadAssetAsync<T>(key);
            await handle.Task;
            if (handle.Status == AsyncOperationStatus.Succeeded)
                return handle.Result;

            Debug.LogError($"Addressable load failed : {key}");
            return null;
        }
    }
}