LinkedIn has been a pretty painful interviewing process purely due to the recruiting team.
The process itself is pretty straight forward.
HR Screen
Product Manager call
Interview panel for 5 interviewers
In between each step, the recruiter I worked with took two weeks with radio silence to respond. Even when checking in and nudging, it's been a really disappointing process to not get feedback or updates. I did the final loop three weeks ago and haven't gotten a rejection yet. It's sad that a company whose mission is to help people's professional lives drops the ball on treating applicants like people.