@simon Since 2023, Windows 11 has included native support for 7-zip, rar, gz, and anything else supported by libarchive: https://blogs.windows.com/windowsdeveloper/2023/05/23/bringing-the-power-of-ai-to-windows-11-unlocking-a-new-era-of-productivity-for-customers-and-developers-with-windows-copilot-and-dev-home/

I expect people would install 7-zip (or a spyware clone) to get that support if they're on an older build of Windows.