Not even close. Fox has admitted in court that their programming is not journalism. NPR definitely swings left, don't get me wrong, but Fox is completely unhinged. Their own lawyers argued no reasonable person would beleive them. They're just not comparable in any rational sense.
This is the problem with moral equivalence in judging media bias. One side can slide slightly left and still be almost completely factual (if slightly illogical), while the right can be neither factual nor logical - but we are made to pretend that the biases are equal here.
As a general principle, and I know it's not a very wise thing to say, left-leaning sources are on a different dimension of factuality than right-leaning ones.
I think that also depends on the story. You saw far different reporting on Covid from the two sources. Some of the stuff coming out of the right was crazy but some ended up being the truth and the left leaning sources clearly had their marching orders dialed in and even cast things that were eventually proven true to be “lies” at the time.
Crazy that ended up true? And what “lies”? In the country where I was back then (Hungary), it was quite different, but that’s also because abuse there was and there is still no opposition. COVID was just simply mishandled, and full of corruption, just as usual.
Yeah NPR and Fox are the same degree of biased. It's just harder for people to tell that NPR is biased because its bias is aligned better with the liberal regimes of most western countries. If the regime in your country was right leaning, you'd see most media display that bias and NPR would be your go-to example of something unhinged and biased.
Most left leaning people can't even tell when they're watching something biased towards their beliefs because to them it's just like a fish swimming in water.