Lam Research Process Engineer III interview questions

first round is phone interview ( using teams video call) talked about 1 hour about chemical engineering fundamentals then scheduled online 2 nd round 45 mins presentation 8 person 1 to 1 talk for 30 mins most are conversion talking about interest, research, possible job duties

Got a phone interview from HR and then a few days later from hiring manager directly. They basically asked the same question, describing your research and what's the difficulties you have. The HR also asked a few behavior questions. Onsite interview is in a month, including a presentation and 8 1on1s. These engineers are nice except one guy but I doubt he is there for a pressure test.