Google says it made changes to how the different versions of Chrome operate. Users will be able to run the Stable version of Chrome together with one of the upcoming releases Beta or Dev (Chrome Canary) Users need to uninstall their current versions of Beta and Dev versions, re-download them from the official website, and reinstall the desired versions. This update only applies to Chrome versions on Windows, Android, and Linux. Google says that other operating systems will receive support in future releases.
Source: https://www.bleepingcomputer.com/news/google/you-can-now-run-different-google-chrome-versions-side-by-side/