https://www.bleepingcomputer.com/news/microsoft/microsoft-halts-windows-11-24h2-update-on-pcs-assassins-creed-star-wars-outlaws/

Microsoft is blocking the Windows 11 24H2 update on computers with some Ubisoft games, like Assassin's Creed, Star Wars Outlaws, and Avatar: Frontiers of Pandora, after changes in the operating system cause the games to crash, freeze, or have audio issues.

Since Windows 11 24H2 was released, users have reported on Reddit [1, 2] and the Microsoft Answers forums [1, 2, 3] that Ubisoft games are no longer working correctly.