Meta Software Engineering interview questions

It's a large company, but interviewing was definitely a more robotic process. The technical interviewer seemed checked out and didn't explain interview process well. At the end of the interview the interviewer only talked about himself, so I figured I wasn't in the running anymore.

The interview was okay and I solved two questions but didn’t pass the first round, hard to tell and didn’t get the feedback why I was failed. Probably they don’t have headcount?