Need an update regarding windows 11

Windows 11 isn't officially available to consumers yet. It is still in the development stage and won't be officially released for about 1-2 months. Only Beta testers currently have access and MS has closed the option to become a new Beta tester. There are some previews from Microsoft available online that show the look and feel of the upcoming OS. You need to be a little more patient.

Windows 11 is available to Windows insiders.
https://insider.windows.com/en-us/getting-started tells how to become one.

Hi there,
Windows 11 began its rollout to eligible devices on Oct. 5, meaning that Windows 10 is slowly on the way out. Microsoft has announced that Windows 10 support will end in 2025, so you still have a few years before you'll stop getting security patches. So you need to some more patience till window 11 problem will not resolving.

https://www.cnet.com/tech/services-and-software/dont-wait-to-install-windows-11-download-it-now-with-this-workaround/ tells how to get it right now. More than one way, in fact.