Destiny 2 and the Xbox One X have a strange history.
For months Bungie didn't want to confirm if the game would even get patched for the Xbox One X. When the developer did, it didn't reveal if the title ran at native 4K or checkerboarded 4K. The only statement issued to the press was that Destiny 2 ran at "4K on Xbox One X and adaptive 4K on PlayStation 4 Pro." However, it turns out that the differences are greater than expected.
Full story from the WindowsCentral blog...