For my own tech yes, I can ignore it. But for job opportunities, the unfortunate reality is that recruiters, hiring managers, and interviewers will be looking for knowledge about relevant tech. I don't want to learn NextJS, and you will not catch me trying to use it in my free time. But if one day I apply for a job that's looking for people with knowledge of NextJS, I probably won't get that job. And if it comes to pass that the majority of the industry moves to NextJS, I'm now at significant risk.
Of course, when I hire I look for fundamental skills, not familiarity with XYZ technology. But I've seen people hire that way, and I know it's fairly common in our field.
> And if it comes to pass that the majority of the industry moves to NextJS, I'm now at significant risk.
I think "significant" is overstating it. Learning new tech is not that hard, particularly if you're already familiar with adjacent tech. I recognize that some people look for checkmarks on a CV, but if that's how they operate then you probably don't want to work there.
Of course, when I hire I look for fundamental skills, not familiarity with XYZ technology. But I've seen people hire that way, and I know it's fairly common in our field.