As announced in Preparing the Windows 10 May 2021 Update for Release (https://blogs.windows.com/windows-insider/2021/04/28/preparing-the-windows-10-may-2021-update-for-release/), the Windows 10 May 2021 is in the final stages for release.
If you are want to get a head start, it can be downloaded from here (https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewiso).