@Salv0_117There is no critical path content after the main mission, there are sidequests that help tell the story of the Legion of Dawn and have some challenges to do, but the main story is over.
In particular, if you have the 'Tip of the Spear' mission, that is a bug, and that mission is no longer playable. It was part of the original Cataclysm questline from August 2019 and was removed after the event finished 6-8 week starts later. Maybe they will bring it back someday. If you’re interested, there are a few YouTube videos showing those missions. They might help you make sense of the Cataclysm when you see/play it in-game.
Personally I wish they’d re-enable it when the Cataclysm was up at least, but they haven’t yet, so I’m guessing it would take too much dev time away from the revamp to fit it into the current play rotation.
