https://wccftech.com/skip-the-line-and-install-windows-10-version-2004-two-ways/

Windows 10 May 2020 Update is now live for the public. With this update, Microsoft has focused on performance improvements, feature updates, and the stability of the operating system. After over a year of Insider testing of Windows 10 v2004, Microsoft is now offering the May 2020 Update to everyone seeking it (or via the ISO files). To install Windows 10 version 2004, you can follow these few simple steps:

Microsoft said that if you aren't seeing the update to Windows 10, version 2004 on your device, it's because the company is "slowly throttling up this availability over the coming weeks." The absence of the new update could also be because of potential "a compatibility issue for which a safeguard hold is in place until we are confident that you will have a good update experience."