Just run Windows Update. It isn’t a new install just an update.
If it doesn’t show as an update in Windows Update, download and install the file in the following link and install it.
Then after reboot, do another Windows Update.
UPDATE 7/18: https://www.elevenforum.com/t/windows-11-2023-update-version-23h2-is-now-broadly-available-to-all.26877/#post-481661 Microsoft Support: Summary Windows 11, versions 22H2 and 23H2 share a common core operating system with an identical set of system files. Therefore, the new features...
www.elevenforum.com
But you really should always do an image backup first. Then if you’re not happy, you can revert back to your OS as it is today.