Chromebooks are fairly useful, but they come with one major issue — after a short while, Chromebooks stop receiving Chrome OS updates. That’s fairly understandable, so why is it a major issue? That’s because of Chrome, the browser.
From what I understand, one of the motivations for LaCrOS is that it makes chrome-for-chromeos more like chrome for other systems, where we ship a binary for that os built like we (browser team) want, independent of the toolchain of the os.
It seems fairly obvious that Google is looking at ways to ensure that Chromebook users can keep on updating their browser even after the Chromebook stops receiving Chrome OS updates. This could be a potential winner for Chromebook users, allowing them to keep using their devices for considerably longer than they would otherwise have.
There’s no telling when (or if) Google will ship this feature to Chrome OS, but it might take longer than usual due to the Coronavirus pandemic forcing everyone to work on adjusted schedules.