But I don't agree with the GP either. "Conservative bias in our media"? Either you're to the left of CNN (in which case you're far from the median, and so in a bad position to judge), or you're looking at a very skewed subset of the media.
Personally, I think it's a backlash. I think the liberals have been loudly triumphalist since... maybe the beginning of Obama's presidency? Somewhere in there. There's been this aura of "We're going to re-order the country to our approach, and we're going to fix all the problems." And they did re-order it, not completely, but to a large degree.
So when that fails to produce the paradise that was promised, people point out that the liberal agenda, in a place where they were pretty free to carry it out, failed to produce what the liberals claimed it would.
There's no shortage of articles pointing out that the conservative agenda, in places where they were free to carry it out, also failed to produce. But those articles get less traction, I suspect because people find "conservative agenda fails to produce" to be less surprising than "liberal agenda fails to produce". (Or maybe just because "the conservative agenda will produce" lately has been less widely trumpeted than "the liberal agenda will produce".)
I lived in Sf about a decade back. There were a steady stream of articles even way back then about how San Francisco was falling apart. Like yeah the Tenderloin is a ghetto and there are not enough public bathrooms. But the rest of the city is pretty safe. The biggest problem by far were the housing prices which is why I moved out. A decade later the Tenderloin is still a ghetto, still not enough bathrooms, and the housing prices are still too damn high. And there are still articles about how it is on the verge of collapse.
The fact that "media is liberal" is taken everywhere as such an obvious unchallengable truism, no proof required, is to me proof of the opposite, conservative bias dominates our political discourse. I honestly feel like all I hear are conservative talking points, like cancel culture, critical race theory, trans stuff all the time, anti masks, SF is horrible, etc.