Depends on the website usually, one that I managed to "hack" is a newspaper in my country (the biggest one actually) that only hides the article text through a CSS class; You just remove that from the HTML through dev tools and have access to the whole thing. I hope in most cases it is more complicated than that

Probably using a trick to go there via Facebook, there was a trick like that somewhere. Or imitate a search engine, because the news outlet also wants a high Google ranking. Or use a copy from archive.is.