This has been my experience with conferences lately: Way too much emphasis on the next big trend, to the point of being counterproductive for actually getting work done
Certain teams and companies live and die by conference trends. If you can't also show interest in those trends, they don't want you.
I was asked to review hiring practices for the front-end team at a company I worked for a couple years back. They had a long list of questions about the latest web technologies and frameworks that they used to screen candidates. I was puzzled because we didn't use many of the technologies they listed. Several of them weren't even stabilized standards that could be used in production. The team lead explained that knowing about them was his primary signal for someone's overall competence.
They hired a lot of "smart" developers, but they also took forever to ship anything. They were always trying to do things like micro front-ends, rewrite part of the app in the latest framework, experiment with new web technologies that were too immature to ship, and other things that weren't really related to getting product out the door.