Hey Vennela!
My name is Ravi, an independent advisor and expert user. I am happy to help you. :)
I understand how confusing it can be to see Windows 10 as an OS version when a computer is running on Windows 11. Please allow me to explain.
This isn't a bug. It's by design for compatibility issues so that a ton of software doesn't stop installing because it thinks that Windows 11 is an unsupported operating system.
Don't worry; it won't affect the system in any way.
Feel free to get in touch again if you have any additional questions.
Cheers,
Ravi