Quantitative "news" like baseball scores, stock market results, the labor numbers reported, I believe are accurate (a mistake every so often, but rare). Obviously with economic news about what the "UE" rate is is reported correctly, but the analysis could be off or shaded by BLS. I don't think it's intentionally shaded.
A lot of what I see "on line" is termed "analysis", and one can take that FWIW, some of it might be illuminating. What a politician says is obviously going to be shaded, perhaps to the point of being misleading.
One of the most frequent thing I see is failing to report on a thing. If you read Fox News and then CNN, the headlines will be very different, nearly always barring some major event. And a major story on one can be ignored on the other, at least for a while, like this "treason" story. Then the other side will come out with their "explanation" as to why it's not really a story.
Humans would like the "news" to report what they like to see, which is why we have such polarized news outlets, each has their market. The "Allsides" site noted above at least references different news links and their takes labeled as Left or Right which is useful, to me anyway.
A truly centered news outlet would probably struggle for "business" because each side that are sided wants to read their confirmed biases stuff.
