When I first opened the article in Firefox, I only saw the first two paragraphs (same as the OP). This was true whether it was in reader mode or not. I opened it in Chrome and saw the whole article.

I just tried opening it in Firefox now (a couple hours later) and I see the whole article. If I switch to reader mode I do see it's truncated about halfway through, but I think that's a separate issue from what the OP was seeing.

On iOS. Initially used reader mode, but switched because it seemed cut off.

But also without reader mode I can’t see more than the NHS anecdote.

We clicked on the link and were presented with two paragraphs. New Yorker articles usually don't show up correctly, I don't know why they allowed to be posted here. Acting like we don't know how to read a webpage is gaslighting.