Attended interview for rust validation engineer there where two rounds both rounds where directly with Client. And once that's done I got offer letter within one week the process was really good

The contacted me from HR with a good opportunity but they didn´t want to share any details over the phone. So I went to the interview and first they kept me waiting for a long time and when the HR person came, she said that the Team lead was not available so she would direct the interview from a HR point of view and wait to see if the Team lead could join afterwards to discuss technical points. So I asked about the project but she didnt want to share anything without this missing person and so instead of talking about the available projects or my technical experience/degree, she asked me for more than one hour the classic questions "when did you find a difficult situation and how did you solve it?" but any time that I tried to discuss the technical details she would appear super bored. She then gave me a very long description about Altran and their conditions (like health insurance and such) but nothing about projects or any technical detail. At some point she wanted to check my English level so she asked me to speak in English for a while. I explained in English what I was looking for in a new position (environment, type of work, tasks, etc) and she told not to continue but tell her, instead, what I did during the weekend. We kept talking about the weekend for maybe 20 minutes so I started to be very uncomfortable and nervous and then she started asking me, many times, why I was so nervous. I actually wanted to go to the dentist so I asked about the technical team lead and she said that he was not coming and that in any case he could call me via Skype another day and tell me about all the projects they had. She insisted on why I was so nervous so I said that if there was nothing left, for me that was all and I asked if we could find a specific date for the Skype call and she said that it would not be necessary. Pointless interview ever, I still dont know why she did it but Im not going to any without knowing the project beforehand anymore.