Additional to original question what app do you use for rss? I used to use feedly, but would like something more FOSS.

In my mind there is no them, but individuals, trying to achieve their own goals. Everyone has some incentive to misinterpret and twist truth. It might be just so it fits with their own biases and world view little better. The only reasonable way to use information online is to follow evidence based information and look for trusthworthy official sources.