Sure it could all be fake new. But I don't see the Saudi's putting out any statements refuting it either. Zero mention.
The two side are most likely doing some level of negotiation.
There are many mentions, however, of the 1967 borders and Israel out of Gaza entirely as bare minimum loud and clear said in Saudi publications 10 times already or in the international organizations, just to start talking again with Israel, regarding the normalization.
That's a fact, everything else is probably fake news. I see no reason Saudis would publically retract this and back away from those conditions, that would be an international and domestic public perception disaster move.
And I don't think that the US "protection" is all that valuable to be honest, when the US can't even protect their master entity, Israel, against the Iranian strike, nor can they defeat the officially 'hungriest' country in the entire world right now, Yemen, to keep the Suez?
You also have Iran and Saudi having like best relations ever, as seen by the frequency of meetings, Saudis are now as vary of them as they are against the USIsrael instability. To be completely frank, the US's bullshit promises are worth jack shit right now. You are off by around 30 years.