Google

Phone screen followed by a day-long onsite interview. This consists of 5 interviews, each 45 minutes long. Each interview includes a programming problem to code and questions on unit testing. One interview focuses on system design.

Reached out by a recruiter (I think it was from an RPO). Set up a phone interview for a simple Graph problem. Four onsite interviews followed, including one Googlyness round. These included two array questions and one DP problem with sub-parts.

Expected to code on a Google Doc. When I expressed my feedback and issues to the recruiter, she was defensive and generally not receptive. That's a culture red flag and indicated that it was not a good fit.