Ardan Labs Backend Software Engineer interview questions

The selection process consisted of three stages: an initial interview with HR, a technical interview, and the final stage with the client. After the last phase, I got "ghosted". I sent an email requesting feedback, but so far, I haven't gotten a response from either the client or Ardan Labs. I consider this lack of feedback disrespectful and a demonstration of unprofessional behavior on the company's part.