In the opinion division, there are no rules. You can say whatever you want, spread whatever baseless rumors you want, accuse people without evidence. They are the full-blown propaganda arm of the network and honestly most of the reason for why it’s as successful as it is. The news division is intended to lend credibility to the opinion division.
The news division really does strive for credibility. They have a conservative lean for sure but they really aren’t that bad. Fox in the middle of the day, “America’s News HQ” and all that, is right-leaning but mostly just covering news events.