Stick around in this field for a while, and you’ll see these libraries, languages, build processes, and heck, even entire philosophies on how best to build websites come and go like a slow tide.
You might witness some old-timer waving their fist from time to time, yelling that we should learn from the mistakes of the past. You could also witness some particularly boisterous youth waving their fists just as high, pronouncing the past an irrelevant context and no longer a useful talking point.
They’re both right, probably. As long as nobody is being nasty, it’s all part of the flow.
I’ve spent this whole year thinking about how I think the term front-end developer is still pretty meaningful, despite the divide in focus. The widening of the role just brings about more opportunity.