Defense News services has a post, “Lockheed wins $1.1B contract to design Navy’s Integrated Combat System,” that reports,
“The U.S. Navy awarded Lockheed Martin $23 million to begin creating the Integrated Combat System that may one day connect the Navy’s and U.S. Coast Guard’s surface fleets.”
There is a good background article from US Naval institute that came out in 2020.
This is an essential element of the Navy’s planned distributed operations. It should also facilitate interoperability with current and future users of the Aegis system including Australia, Canada, Japan, Norway, Spain, and South Korea.
The National Security Cutters already have the Aegis combat system which will evolve into the integrated systems.
I have seen no indication the OPC will share this system, but it certainly should. It is to be used on unmanned craft as well, so it could probably be scaled down to work on the Webber class FRC as well.
Chuck Hill's CG Blog 
NSC and OPC use Athena which is part of the Aegis Common Source Library is my understanding. What I don;t know is whether the Athena Combat System in the Italian PPAs are one and the same. If they are, the ship should be the future rendition of a future frigate LCS hybrid and be happy about it.
Thanks, I should have remembered that the OPCs were to be equipped with the Aegis Athena Combat Management System.
I don’t see anything in the description of the Italian PPAs about Athena or Aegis, but they do look like very capable ships:
https://en.wikipedia.org/wiki/Thaon_di_Revel-class_offshore_patrol_vessel