When I read Scientific American when I was in High School in the 90’s it was a very challenging read. I don’t think any publication outside of a scientific journal is that rigorous anymore.
I read a good article some time ago that explained the different 'levels' of scientific writing. Level 1 was the actual papers. Level 2 is the press releases of the university or research institute in question. And level 3 and beyond are the pop sci websites, magazines, social media channels etc picking up on it - and it becomes muddled after that, because they will often pick up and rewrite from each other instead of referencing the source.
The most grieving of that one, I find, is about things like exoplanets. The publications will mention some numbers showing evidence of an exoplanet that may be at a certain distance from its star to have reasonable temperatures or traces of oxygen and water. The pop sci drivel sites and some newspapers even will publish screaming headlines with great-but-completely-fantastical artists' renderings of verdant planets, basically claiming that life has been found and we'll be shaking tentacles with our new overlords soon.
Even the press releases from the universities can often be really low-quality - written for easy regurgitation by the press to ensure maximum virality.
Actual decent articles that put the research into context for the layman and are honest about the findings and consequences of those findings is increasingly rate. Scientific American used to be very good for it but has declined. New Scientist declined even before SciAm did.
Then there's all the pop-sci websites that are a rung below even those.
When growing up, my dad had a subscription to Scientific American. I learnt a lot from it, even English language. First the easy parts (50 years ago, letters to the editor), and then more advanced columns (Metamathematical Themes, Amateur Scientist), and finally some of the articles.
When I moved on my own in the late 80's, I naturally got my own subscription too. But I was already feeling that the level was dropping. They introduced Science in Pictures, and stuff like that. The day when I felt I could read and understand every article, I decided not to renew my subscription. Must have been early 90's.
The most grieving of that one, I find, is about things like exoplanets. The publications will mention some numbers showing evidence of an exoplanet that may be at a certain distance from its star to have reasonable temperatures or traces of oxygen and water. The pop sci drivel sites and some newspapers even will publish screaming headlines with great-but-completely-fantastical artists' renderings of verdant planets, basically claiming that life has been found and we'll be shaking tentacles with our new overlords soon.