It does still happen not infrequently on a certain sort of site which I’ll simplify to “marketing homepage”, but it’s not happening anywhere near as often as it did three years ago. I haven’t tried to assess if this is because more-sensible frameworks have gained popularity, or if the stupid frameworks support server-side rendering better now.

Gotta say, though, that I don’t think one actually misses much in such cases.

Of sites that require JS to not be blank and don’t fit into this main category, my vague feeling is that the rate hasn’t changed much.

I agree with the sibling comment that it's been worse in the past.

But it also tends to correlate with types of sites that I'm not especially interested in anyway.

Well, except the image hosts. Webmasters who claim that their site's primary purpose is to display static images, who cannot or will not just use a normal <img> tag, are beneath contempt.

Maybe it's triggering ad blockers? I have JS enabled and I see a few elements but it's obviously broken here too.

In any case it's not a great look if they want to encourage adoption of their tools!