This problem was experienced on devices where the Focus Assist feature is turned off.
Here’s a list of other improvements in Build 22000.100 (KB5004300): You can also configure Focus Assist from Quick Settings or the main settings app. The notification center, previously known as Action Center, is getting a new feature that would let you quickly access Focus assist settings. As a result, scrolling will feel faster and new animations will appear when you open an app or movie listing. For instance, Microsoft has improved the navigation of the new Store app on Windows 11. Microsoft Store is also getting a new update with quality improvements. In fact, it will eventually stop, and a red backplate will appear instead. However, the flash would be calm and subtle.
