Was assigned a task, completed the task. Then my work was selected by the member of the product team and invited for interview. I didn't make it to the later rounds

DO NOT INTERVIEW WITH THEM. They make you do a case study that is FAR more complicated than necessary (took me literally HOURS + there's a whole writeup) before you even get a screening. Once you make it to the next interview, they spend the entire time picking apart your answer to the case study. Most companies would spend time trying to understand your thinking and working with you to come to a better conclusion. Instead, the interviewer spent the whole time trying to "outsmart" you by asking "gotcha" questions on areas where you tripped up and smirking when you get stuck. Honestly the interview process felt more like a competition between you and the interviewer of "whose idea is better", which is very odd (shouldn't product managers be working together?). Then, not only do they say that they don't have time to give interviewees feedback because "there are too many", they have THE AUDACITY to ask YOU to give THEM feedback. TD;LR: Horrible interview process, lack of respect for job candidates - you're better off spending your time and talent applying elsewhere. Look at other reviews on here and you'll see there's a reason why they're having so much trouble hiring.