var item = Expression.Parameter(typeof(Product), "item");
        var name = Expression.Property(item, nameof(Product.Name));
        var price = Expression.Property(item, nameof(Product.Price));

        var predicate = Expression.Lambda<Func<Product, bool>>(
            Expression.AndAlso(
                Expression.Call(name, nameof(string.StartsWith), null, Expression.Constant("A")),
                Expression.GreaterThan(price, Expression.Constant(10m))
            ),
            item
        );

        var productQuery = predicate.Compile();

        this.testOutputHelper.WriteLine(productQuery.ToString());

        var products = new List<Product>
        {
            new() { Name = "Abcdef", Price = 5, },
            new() { Name = "12345", Price = 15, },
            new() { Name = "", Price = 5, },
            new() { Name = "Abcdef", Price = 11, },
        };

        var array = products.Where(productQuery).ToArray();

        foreach (var json in array.Select(JsonConvert.SerializeObject))
        {
            this.testOutputHelper.WriteLine(json);
        }

https://www.bilibili.com/video/BV1Lq4y1T7Qs