(It will be the first time a GBU-57A/B has been used in war, which is interesting)

They needed troops on the ground. Israel was going to do this.

It's possible they have just collapsed the entrances.

Trumps comments - https://truthsocial.com/@realDonaldTrump You have a loop, @Osint613 reposted Trump as "Fordow is gone" which Trump reposted. Neither of them have any idea.

(Natanz, Isfahan were already hit and damaged by Israel, the US didn't bother to bunker bust them, it was Tomahawks from subs )

3D model of Fordow - https://x.com/TheIntelLab/status/1398716540485308417

You need a tactical nuke to destroy Fordow, but the USA considers tactical the same as strategic, so it would be very unlikely. Russia could, since they put tactical in a different category.