Meta Production Engineer interview questions

The process involved a recruiter reaching out then followed by a questionnaire with about 18 questions on linux knowledge like commands, operations, etc. After clearing the OA, Phone Screening was held which had 2x60 min rounds - PE Basics, PE Coding and the recruiter reached out the next day and asked availability for virtual onsite (3x60 min rounds) - Systems Knowledge, Coding, Behavioral. I got the reject next day.