C# Stack Class

Stack.cs

using System;
using System.Collections.Generic;

namespace Sandbox
{
    public class Stack<T>
    {
        private readonly List<T> _list = new List<T>();
        
        public void Push(T obj)
        {
            _list.Add(obj);
        }

        public T Pop()
        {
            if (_list.Count < 1) throw new InvalidOperationException("No items in stack.");
            
            var lastItem = _list[^1];
            _list.RemoveAt(_list.Count - 1);

            return lastItem;
        }

        public void Clear()
        {
            _list.Clear();
        }
    }
}