i see this question pop up a lot, and honestly, i get the confusion. job descriptions scream 'portfolio required', but you're left wondering if anyone actually clicks the link. let me share what I've seen from both sides of the table.
think about it this way: would a tattoo shop take your word that you can draw? no chance. would a band hire a lead guitarist without hearing them play? of course not. creative and marketing roles are exactly the same. your resume lists what you've done, but a portfolio proves how you think.
As someone who's hired for creative, UX, and marketing roles, i can tell you: once you pass the initial screening, the portfolio often outweighs the resume. a resume tells me your job history. a portfolio shows me your approach to problems, how you make decisions, the impact you delivered, and whether you can connect strategy with execution.
and here's the thing-a strong portfolio doesn't need to be a gallery of polished, final outputs. the ones that grab my attention explain the context, the challenges, the process, and the outcomes. they show me your thinking, not just your prettiest work.
i've seen two candidates with nearly identical resumes, but a thoughtful portfolio made the difference between 'interesting candidate' and 'let's interview this person immediately.' So no, it's not a nice-to-have. it's the proof behind the claims on your CV. Invest the time.