I personally never compared OAN with CNN of course, so that is a straw man, other than noting I lean to thinking they ALL are propaganda outlets, which indeed i is my opinion. Some are slicker at it than others.
I've never watched a second of OAN and would not know they existed were it not for some posters posting links to them, and that I heard one of their "reporters" at the Presidential press thingee asking some softball leading questions. So, I have only a vague and indirect opinion about OAN, and have no desire to further develop said opinion.
I have seen how an interview can be distorted by the media firsthand, and for no obvious reason. I think some of that is haste and some sloppiness.
I have seen how 60 Minutes starts with a conclusion and then force fits the story to conform to said conclusion.
The media outlets with few exceptions are commercial enterprises and their objective is profits, meaning eyeballs, meaning they pander to their viewers with confirmation bias.