Opendoor interview questions

Initial 30 minute call with hiring manager, followed by 4.5 hours worth of zoom interviews with 4 other managers/team members one after another. It was time consuming, but not as laborious as initially thought. It's a bit of a whirlwind and each interviewer sticks to a hard 30 minute block. Whether you're done or not. I waited 2 weeks to hear anything, which isn't terrible, but isn't, great since they had no intention of making an employment offer. I'm leaving a negative review solely because after the time put in preparing and interviewing, I believe candidates should get some form of feedback from the interviewers. I have respectfully reached out multiple times asking for just that, only to be completely ignored. Extremely unprofessional.