One live coding interview: two medium Leetcode questions followed by machine learning questions One technical interview: questions about my research, the research done at Meta and it would align with my interests, and a linear algebra question

7 Interviews, didn't receive an offer after the final round. Time-consuming process, which includes multiple rounds of technical interviews (design, coding, behavior, etc.) and a 1-hour research talk. The team leader was unpleasant to interact with.