Matrix Pointe Software interview questions

Interview started with them reaching out via email to schedule a virtual interview. Shortly after the virtual interview, I was invited for an in-person interview at their office. I felt the in-person interview was unprofessional. At first, they seemed more concerned with critiquing my resume than what was actually on it or how I was answering their questions. I was also asked strange and irrelevant questions like what my high school GPA was. Towards the end I was asked to answer a specific question in detail and was scolded when I couldn't properly answer. It felt like more of an interrogation and belittling than an actual interview. I did not feel comfortable and even if I had been offered the position, I cannot say it would have been somewhere I wanted to work.