Well, if they don’t publish anything that contradicts their leftist playbook, then they are by default unreliable and “peer reviewed” is meaningless.
It merely becomes a synonym for “kowtows to the party line” instead of “displays integrity in its use of the scientific method and reports honestly on the results.”
Their research reports ARE peer reviewed, and are scientifically valid!
Their editorials and social commentary are NOT peer reviewed. And they publish an increasing amount of “social science”, that does NOT belong in scientific journals!!!!
It takes a knowledgeable person (with at least a bachelor’s degree in science from a good college or university) to dismiss the social-policy garbage and to concentrate on the real science and medicine.
The best approach is to refuse to read the leftist clap-trap and to concentrate on the science. I also tend to ignore most of the covid articles for lack of interest. But I may be wrong for doing so.