Google Business Systems Analyst Interview

My friend recently appeared for a Business systems Analyst role at google. She cleared the phone screen post which she was shared 3 interview google meet links. She was told that first round will be knockout round but she wasn’t told if round 2 or round 3 are eliminatory in nature. Post clearing all 3 rounds, the candidate is supposed to get a final round call for googliness/leadership. All 3 rounds were with a gap of 1 hour each on same day. She appeared for the first round, and then immediately after the round she got a call from recruiter that she is through to the next (second) round. She appeared for the second round which didn’t go well for her. She then also appeared for the third round which went well. My question is - can you find out (with sources from blogs etc) if second rounds in such roles is generally a knockout round or not? She didn’t get a call from recruiter after second call, but the interviewer appeared for the third round. She also didn’t get a call from recruiter after the third round on next steps the same day.

What can be assumed in this case? Is she out (With what probability)? OR she still could get a call for final round (with what probability) ?