The explicit goal of Lacros was to “allow [the] Chrome browser on Chromebooks to swiftly get the latest feature and security updates without needing a full OS update.” Notably, the company today believes it is “achieving similar objectives” with the ChromeOS embrace of Android under-the-hood.

I don’t know anything about ChromeOS beyond having a cheapo Chromebook and setting up Linux on it. From the sounds of it, I’m guessing it’s core functionality was heavily reliant on the Chrome browser? Kinda like how Microsoft used Explorer to build IE, so there was a lot of cross over between IE and the standard windows File system?