Good day AdarshWase! I am glad to be able to provide assistance to you today. I understand that you are looking into downloading Windows 11 and it is available starting October 5, 2021 and the roll out will be staggered or in batches. If you have tested the compatibility and all is good on your end then it is best to go over with the upgrade assistant and you can check out the links below for reference. It is also safe to download from the link that you have just mentioned as you will have an option to create an ISO file as well.
https://go.microsoft.com/fwlink/?linkid=2171764
https://www.elevenforum.com/t/upgrade-to-window...
https://www.elevenforum.com/t/upgrade-to-window...
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Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
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Regards,
Paul R.