Windows 11 KB5037771, a cumulative update, comes with many fixes and improvements.
To know what is new in this update, see this post.
Besides,MiniToolwill show you how to download & install it on your PC.

This update brings some security patches and various fixes & improvements.
It plans to provide an update in an upcoming release.
This is because unstable updates could trigger potential data loss or system crashes.

Windows will automatically download and install it as per the Windows update options.
See how to get this update.
Step 1: OpenSettings > Windows Update.
Step 2: Tap onCheck for Updates.
Step 3: Restart this PC to complete the update process.
To get this update, manually download and install it via the Microsoft Update Catalog.
Step 1: Visit thedirect download linkof KB5037771.
Step 3: Double-punch this file to begin installing this update for Windows 11 23H2 or 22H2.
Verdict
Now you have a clear knowledge of Windows 11 KB5037771 when reading here.