Objective reality, it exists.

Telling your audience obviously false / anti-factual lies, without any regard for fact checking, is not just "biased reporting". And it is inherently wrong, malevolent, evil.

Anyway, I'm amazed each time I hear right wingers who did not get the joke seemingly complaining about how Reality has a left leaning political bias...

Lying is not the same as bias. That is the problem, people often conflate the two.