Microsoft has released a bunch of important bug fixes for Windows 11 and Windows 10 versions 20H2 and up. These are optional, cumulative, non-security updates and were released under KB5008353 for Windows 11 and KB5009596 for Windows 10.
Here are the major highlights of this "C" release on Windows 11:
Updates an issue that causes the audio service to stop responding on some devices that support hardware-accelerated Bluetooth audio.
Updates an issue that affects icons for apps when the apps are not running. On the taskbar, these icons might display as active as if the apps are running.
Updates an issue that incorrectly shows the volume icon in the taskbar as muted.
Updates an issue that causes a device to stop working when it’s connected to multiple displays.
Updates an issue that might prevent icons from appearing on the taskbar of a secondary display.
Improves auto brightness to provide a better response under low light conditions on all the supported systems.
There are several other improvements and fixes too. You can find the full details on the Microsoft support page for the new Windows 11 KB5008353 update linked here. Likewise, you can find the various highlights and improvements for the Windows 10 update under KB5009596 linked here.
You can either download these updates via Settings > Update & Security > Windows Update or opt for standalone downloads on the Microsoft Update Catalog website.
Interestingly, Microsoft had already released a Windows 10 Insider build earlier under the same KB5009596.