That NPR article disagrees. "I see it regularly" begs for say 5-10 solid examples.
Coler says his writers have tried to write fake news for liberals — but they just never take the bait.
(and)
"We've tried liberals. It never worked. You'll get debunked within the first 2 comments."
In this election, NPR & others reported that Trump said all Mexicans are rapists & criminals.
This was at best a highly inaccurate interpretation of his actual quote.
At worst...they knowingly lied.
Liberals are prone to believe things which give them joy, just as are conservatives.
Is one worse than the other?
I don't know.
But I wouldn't trust the guy quoted in NPR, since as a Democrat, his bias would not only creep into his judgement, but also into the fake news stories he tries. Perhaps the most convincing fake news is that created by an opponent.
There are more examples if needed.