This is true. I don't know if it is from the AP or press releases or what, but it is obvious they are all using the same source. If one uses the term 'gravitas' they ALL use the term 'gravitas' at the same time. They all use the phrase 'existential threat' at the same time whether in a straight news story or in talking head commentary. "Threat to our democracy' or 'assault on our Constitution' will be universal throughout media coverage. So they all are getting their 'marching orders' from somewhere.
And because the media is pretty much universally populated with leftists now, most media reporting/commentary is with that slant. There is no code of ethics anymore. I have a good friend in the media who I will not name but this person agreed that they intentionally make sure that if anything is said positive about Biden, they include something negative about Trump. If they must report something negative about Biden they still report something 'worse' about Trump and/or organize the story so the negative about Biden is obscured by other stuff. Reports of unusual weather pretty much must include something about climate change. And so forth.
But perhaps sooner or later their sense of ethics or personal sense of honor gets the best of them and they feel compelled to report the truth about something. So I am encouraged when a national newspaper like the NY Times will admit they pushed a totally fraudulent story however snarky and tepid the acknowledgment.