Key features introduced in the English x64 version include:
Unlike the feature-heavy updates of the past (such as 2004 or 20H2), Version 21H2 is a "scoped" update. Microsoft adopted a faster release cycle similar to Chrome or Edge, meaning the changes are delivered via a small "enablement package." This results in a much faster installation process for users already on version 21H1 or 2004. win10_21h2_english_x64
The filename is structured to provide essential information for installation and compatibility: : Specifies the Windows 10 operating system [12]. Key features introduced in the English x64 version