Why students benefit from a portfolio early
When a batch of students applies for the same role, many resumes read alike. A link to your work gives a recruiter something specific to look at and something to ask you about in the interview.
You also do not need years of experience to fill one. College projects, a final year project, an internship, a hackathon or a course you finished are all real material when you explain what you did.
Made for every field, not only engineering
Portfolios are not only for developers and designers. A commerce student can show a financial analysis, an MBA student a case competition, and a nursing student their clinical rotations. There is a design page for each field, with advice on what to show.
Works on the phone your recruiter is holding
Many people open links on a phone. Every design is built to work at phone width, and your page is sent as plain, fast HTML rather than a heavy app, so it opens well on an ordinary mobile connection.