Null-conditional operator always true in if statement when should be false

When using a null-conditional operator the first if statement will always output True, however the second if statement will output False when using parentheses. Why is the first if statement True?

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            var test = new Test { Boolean = true };

            //True
            if (test?.Boolean ?? true && 1 == 2)
                Console.WriteLine("True");
            else
                Console.WriteLine("False");

            //False
            if ((test?.Boolean ?? true) && 1 == 2)
                Console.WriteLine("True");
            else
                Console.WriteLine("False");
        }
    }

    public class Test
    {
        public bool? Boolean { get; set; }
    }
}