Pretty much the entire web works just fine without JavaScript. Indeed, most of it works better without it - everything loads faster and there’s fewer annoyances like interstitial ads, auto playing audio, etc. Unless you’re serving an actual app, like webmail or online office, a webpage that doesn’t even render without js is an immediate bounce. I can get your content elsewhere.

I mean, almost the entire public web consists of blogs, forums, and news articles/essays. Almost all of these, with some modern exceptions, work perfectly fine. Of course, you may need JS to take full advantage of e.g., forum software features, but I can browse just fine. Sure, if you have a legitimate SPA like a mapping application or a game JS is a very reasonable expectation. But it’s hard for me to see what users gain otherwise. Actually, I don’t even see what developers gain, other than an improved resume.

To add to this: when a client comes to my employer, if it is required to work without Javascript it is the norm for that to be explicitly specified. Just to add to this point. It’s otherwise assumed not to be an issue