There is a bit of a difference between other professions and software. You wouldn’t hire an orthopedic surgeon for cardiology. Now, the human body doesn’t change that fast. So both are needed. In software the rate of change is much faster. So what happens is tools change and people who want to switch streams for better opportunity have to tweak resumes. Now the only way to validate basic proficiency comes down to leetcode style interviews - for better or worse. It’s pretty much the only common denominator between an interviewer and the candidate.