Bias is a problem that can interfere with the output of people who think they are doing good-faith journalism. But anyone with a blog can write what other people will mistake for news, and if they're good, can make it go viral. No relationship with the truth, not even an attempted one, is involved.
Conservative slant headline: Hero CCW Bystander Stops Mass Shooting.
Liberal slant headline: Mass Shooting Underscores the Need for Gun Control Now.
Fake news headline: New Proof That Lizard Men Hired Crisis Actors in Plot to Take Your Guns.
That might be how you use the term, but that might more correctly called "false news". In common parlance, "fake news" refers to an overall pattern of filtering and narrative-pushing such that consuming lots of these stories (possibly each of them factual) will leave the reader with gross misapprehensions about the world.
[0] http://www.sciencemag.org/news/2019/01/majority-americans-we...
[1] https://en.wikipedia.org/wiki/Fake_news
[2] https://www.npr.org/sections/alltechconsidered/2016/11/23/50...
It's useful for non-controversial stuff. I love to peruse it, I love to quote from it. But it can't possibly be trusted for anything as topical as "Fake News".
I love the Michael Scott comment:
Wikipedia is the best thing ever. Anyone in the world can write anything they want about any subject. So you know you are getting the best possible information.
(For those who aren't familiar with the US version of The Office: Michael Scott is not meant to be taken literally).
being reasonable, means some audience will leave to go to the more addicting outrage.
This is my hypothesis only.