Let's face it—Google loves moving the bookmark star, hiding the "www" in URLs, or removing the Close Other Tabs button. Some users simply refuse to adapt to the new design language. A version allows them to keep their preferred 2019 interface without risking automatic updates.
The old Chrome lacks modern root certificates. Fix: You can often ignore the warning (click "Advanced > Proceed to site"), but this is risky. Alternatively, use a local proxy to filter traffic. Generally, if you see this, the browser is too old for modern web standards.
Why someone might want an old/portable Chrome version
Web developers need to test how their sites render on older browser engines. While services like BrowserStack exist, a local portable install of an old Chrome version offers faster, offline testing in a controlled environment.
Older portable installers are often "online installers," meaning they try to download files from Google’s servers during setup. how can i use older versions of chrome portable
This is the biggest drawback. Every month, Google patches dozens of security holes. Using a version from a year ago means you are vulnerable to known exploits