To be fair, how the candidate responds to "tell me about your skills" during a verbal interview is often a lot more telling than the same information on the written CV.
As an interviewer, I'd hope the applicant has done similar work. If they haven't - or give me a stock response - I'd want to spend a couple of minutes probing their response with questions about how they used those skills in their portfolio work.
Asking about the skills they've developed while building their portfolio work as a first question generally (my personal view) helps break the ice, engage us both in the conversation and make for a happier rest-of-the-interview experience.
Especially in this market, unless you are, you’re not a special snowflake. You need them a lot more than they need you. Why would you expect them to put in any level of work pre interview?
My last two jobs where I was coming in because they needed my set of skills and I had three offers on the table and probably would have had at least one more of I had waited, yeah the company I worked for spent as much time selling me as I did them. They made sure that they moved fast and made an offer (less than two weeks from application to offer).
But, I’ve applied for my first role at a $BigTech. I started the process near the end of April. I had my first technical interview last week and the next rounds are probably not for two weeks. Who knows how long it will take them to make a decision. I would never have accepted that turn around at smaller companies. But $BigTech doesn’t need me to rescue a failing project or process like my last two companies.