Windows 12 Beta. The pages appear to provide accurate and secure information. Disclaimer: There are links to non-Microsoft websites.
Open File Explorer and go to where you saved the ISO. Both articles cite author Zac Bowden's 'sources', but he has a strong track record for Windows news. Two months ago, my colleague Sofia WyciĆlik-Wilson reported on Microsoft's plans for that future OS here.
Download your chosen ISO from the Windows Insider ISO page by saving it to a location on your device or creating a bootable USB.
It will be released as a stand-alone edition OS.
Both articles cite author Zac Bowden's 'sources', but he has a strong track record for Windows news. Windows Central reports that Microsoft is. Open File Explorer and go to where you saved the ISO.