Loyal interview questions

The screening interview went well. I got to chat with their design lead and had fun diving into some interesting topics. And then I was given a design challenge that took 5 days to complete, which was pretty time-consuming. After I went into the second round and present my design challenge, they went quiet for nearly 3 weeks and did not get back to me until I explicitly asked them about the result again. I wouldn't be that pissed off if I was simply rejected. I just hope companies can be a bit more responsive and at least tell candidates how long they may expect before a decision is made.