Etsy Software Engineer interview questions

I applied online and got invited to do a 45 minute technical phone interview. This phone interview was held with a current developer. They asked me questions about past and current projects off my resume and then asked a leetcode easy/medium question. I had the opportunity to run and debug my code in the provided coding environment. I was told I would hear back within a week, but even after sending a couple polite follow up emails about updates I never heard back. I have never been ghosted/ignored like this after having an interview so I'm quite shocked by how unprofessional and rude this was. I understand they can't provide feedback but I don't believe that a simple rejection email can be classified as feedback.

Not difficult but definitely a well rounded interview process. Talked about designing systems related to their work as well as an implementation question for a well known algorithm done in pseudocode.