Of course, but some technologies are more mature and stable, and maintaining those amounts to set and forget security updates, not rewriting functionality to keep up with changing features etc.
It's not a dichotomy though. If you build with cutting edge platforms, you'll suffer churn as things change underneath you. It's a choice you should make with awareness, but there's no right answer.
I prefer stable mature platforms for professional settings, because you can focus on the business problems and not the technology problems. It's the more fiscally responsible choice as well, given lower platform churn means less work that has no direct business value.
I feel like there is a category error here where people think a website is the HTML that lands in your browser. When actually it is also the technology that received your request and sent the HTML. Even if it’s the same “flat” HTML sitting on the server, a web application is still sending it. And yes, those require maintenance.