For Windows 11,
Version 22H2 was released in October 2022, and it was supported until October 2024 -- last Fall.
Version 23H2 was released in October 2023, and it will be supported until October 2025 -- this coming fall.
Version 24H2 was released in October 2025, and it will be supported until October 2026.
So, you have not received any security updates for 22H2 since last October.
If Windows Update is not offering an update to 23H2 (nor to 24H2), you will need to download (it is free) the 24H2 version, and then run the "setup.exe" file in the root-folder of the downloaded file.