1) Breadth of coverage. The Economist is much more of a world magazine. When I scan Google News I get basically no Africa coverage. The economist has a section for it.
2) Depth of coverage. The Economist will have journalists reporting on location in places like China and India. They get direct interviews with people who are experiencing the phenomenon being reported on. I rarely if ever see that kind of reporting on Google News, especially not behind a paywall.
3) Better coverage of "slow burn" stories. e.g. There's a lot of interesting stuff happening in Africa right now with infrastructure development. China has its big Belt and Road initiative that's more or less forced western governments to present a viable alternative or get boxed out. The west has bungled the response, and China is now dominant in financing new infrastructure projects throughout Africa. It will likely reap benefits for decades, both in economic and military positioning. There's no one "story" here to make a headline that would bubble up in Google News, but it's a really fascinating ongoing geopolitical saga.
4) Hitting interesting angles on stories. Last week there was an article about Russian troop buildup around Ukraine, but they wrote it from the angle of civilian surveillance technology. By stitching together private satellite imagery, TikTok and YouTube footage they were able to tell that troops that were ostensibly "withdrawn" had just been redeployed to other positions closer to the front. Using dash-cam footage posted to TikTok they were able to even identify specific armored divisions being moved up to the border. So I got a piece of current news (Russia is lying about its troop deployment), plus a piece of insight (in modern warfare citizens can learn about military movements without it being filtered through government entities).
5) This is not specific to the Economist, but the print format is so much nicer for me than digital. There's no temptation to check my email, or see what's on Hacker News (hah), or get drawn down some random digital rabbit hole.
I find just skimming headlines gives me facts but facts are kind of useless. For example you could tell an alien that the average human drinks 1 cup of milk a day and the alien would have a fact but be completely unable to contextualize it.
Longer form articles help you contextualize it.
Of course, you still have to be careful that take into the account the unintentional bias of the source (i.e. a 3/day milk drinker would tell the alien that people don’t drink enough milk, and they’re not lying… they just see life through their own experiences).
So you really need a combo of regular news media for facts and a variety of longer form sources for contextualization.
Sometimes I read almost the whole thing, but there are weeks when I skip more than 80% of the contents because of no time. One issue I'll always read cover to cover, though, is the Christmas special.
Some advice I picked up on HN which works well is to start at the back and make your way to the front.