Largest Contentful Paint (LCP)
The moment the largest thing in the viewport finishes drawing — the closest single number to "the page looks loaded". Good is 2.5 seconds or less.
On a news page the largest element is almost always the lead image or the headline block. Everything before it in the chain counts: the server's response, the render-blocking CSS, the font, and the image itself.
The usual fixes are unglamorous. Give the lead image a real size and let the browser fetch it early, keep anything above it off the critical path, and do not put a banner above the fold on a phone — a block that arrives late pushes the largest element down and takes the score with it.