TRG Research & Development interview questions

HR was very helpful and polite. Explained me about everything and told about 4 round of interview. (1)HR manager talk how you alight to a team and company, 2)tech test, 3)test presenting, 4)final discussion). The team checked my CV and we moved to another round with HR manager and QA. After 30 min of technical/theoretical questions i dropped the interview. The questions were specifically related on my opinion to take the ideas and apply it. After the question: "Tell me about the structure on your current project, which folders do you have?" - i decided not continue. For me it is not explainable to have such questions on a round when you get to know each other especially if you plan to give technical task and after discuss it. Seems like scamming people to take the ideas, knowledge and approaches.