Drips interview questions

I interviewed with the hiring manager and was given a project to complete. They ghosted me after I turned in the project. I sent a polite, professional follow up email and they just never responded.

Got through the whole interview process, which included interviews with four people plus a take-home assignment, only to get completely ghosted after the final interview. Sent two follow-up emails after that with no response, and it's been three weeks since the final interview.