It was a technical screening consisting of both parties' introductions and a know-how knowledge briefing in the system design domain based on past work experience. The interviewer left positive feedback, a verbal job offer, a bit of detail about the next step and working location, and recommended some technologies I may be interested in.
Unfortunately, the socio-economic situation impacted the internship program, resulting in my dismissal. However, the follow-up email emphasized that the interviewer was impressed with my experience and would like to offer future opportunities that align with my interests.