Google is moving towards decoupling the Chrome browser from ChromeOS with the introduction of Lacros on Chromebooks. Lacros is essentially the Chrome browser for Linux, but with the necessary integrations for ChromeOS. This move will allow Google to update the Chrome browser on Chromebooks more quickly and efficiently. Additionally, Lacros could potentially continue to receive updates even after the automatic software update expiration date passes on a Chromebook. The transition to Lacros on Chromebooks will take approximately a year, with both the current Chrome browser and Lacros being available during the transition period. Google plans to begin the rollout of Lacros within the next few months.
https://www.aboutchromebooks.com/news/lacros-on-chromebooks-transition-plan-wont-be-quick/