Do I need to wear formal clothes for the autumn job interview?

This is not a hard and fast rule. It doesn't mean that recruitment positions in all disciplines need to wear formal clothes. Wearing only formal clothes will make the interviewer feel that you are serious about this interview. Moreover, I am attending the interview as a fresh graduate, so the interviewer's requirements for formal attire will not be too harsh. Wearing a formal suit may be a plus item, but not wearing it does not mean that you can't apply. As long as you dress neatly and elegantly, all participants have the same opportunity. Whether you can get an offer in the end depends on your personal ability and the degree of matching with the position. Therefore, there is no need to dwell on the issue of formal dress, and personal ability is very important.