LinkedIn interview questions

FROM Great interview process (All interviews are very positive) TO WORST EVER. GHOSTED after the final presentation round. Tried reaching out to the recruiter for feedback twice after being kept silent for 3 weeks, and they decided to continue and STAY SILENT. I guess that is the recruiting culture there! Stop saying something that you are proud of, DIBS, etc but you can't even practice that with your potential candidate. Hey, LinkedIn recruiter, even if you have identified another candidate you would like to sign, I DONT BELIEVE a simple call or a "sorry you are not selected...." email will be very difficult to send to those who are not being selected?

Had a phone screen followed by 5 virtual onsite interviews. Among MLE interviews at different companies including the ones I've seen in my own FAANG company, I found LinkedIn's to be the most absurd. Their ML interviews had too many probability theory questions and interviewers most inexperienced.