https://www.gamespot.com/articles/you-can-actually-see-destiny-2s-leviathan-raid-in-/1100-6453346/

It didn't take especially long for the first group to beat Destiny 2's new Leviathan Raid. For most players, it's a challenge that will persist for weeks or months, but whatever the case, it's now a permanent part of the game. Even if you're not prepared to jump into the Raid anytime soon, its addition does have a cool, albeit minor impact on all players.