You might ask: Why not just use the online stub installer?
https://dl.google.com/tag/s/installdataindex/update2/installers/ChromeStandaloneSetup64.exe
One downside of portable software is that it does not auto-update through Google's background service (since no service exists). You must manually update.
The is a specialized version of the popular browser designed to run directly from a removable storage device (like a USB drive) or a local folder without a formal installation process. Unlike standard versions, it is packaged as a standalone tool that includes all necessary files, meaning it does not require an active internet connection to "install" or set up on a new machine. Why Use a 64-bit Portable Offline Installer?