Infinity Stone Application-Engineer interview questions

Got on a screening call with the recruiter and everything went well (at least I thought so). Recruiter told me I can expect further instructions for the next (technical round) in 2-3 days. Received a rejection after a day.

HR (Screening) " Informal call with some HR questions Coding (Linux + Python) : 1 hour 30 min. Creating Subprocess and monitoring the process. Good One. Cloud Devops related : 3 hours Technical : 1hr Final : tech + HR