Saints at the top of Davante Adams’ wish list [Raiders trade Adams to Jets for conditional 3rd ; Jets paying Adams’ entire remaining salary]

Teams don’t disclose each other’s offers, what they have on the table from others, etc.
When trading for players, yes they do. They just do it in private, not in public.

What's the advantage of giving information to the press to give to the interested teams, instead of just giving that same information directly to the interested teams? Every team already knows that a trade is possible.

What information has been leaked to the press that the Raiders wouldn't have directly told the interested teams? Why would the Raiders not directly tell the other interested teams that the Saints are being the most aggressive? What's the advantage of the Raiders leaking that to the press instead of directly telling the other interested teams?

All of the above questions also apply to Adam's agent. You know who tells you that teams are "leaking" inside information to them? The people who are trying to get you to watch their show or click on their links. Do you not see what's obvious with that?

ML actually spoke about this at one point, in respects to the draft.
Loomis was talking about when trading for draft picks. Teams don't have to negotiate with draft picks. Draft picks can't talk to other teams. Negotiating is different when more than one party is involved, like when trading for a player vs trading for a draft pick.