Disclosure: I work at Google and am speaking only for myself. I do not work on anything related to Chrome OS.
What's the coding workflow like on chromeOS?
Currently running a framework laptop with fedora just because I like the hardware better then most chromebooks and I can very cheaply throw in a fast 2TB ssd rather then spend hundreds extra to upgrade a chromebook to 512GB.
The great thing about Chromebook is the firmware. Ron Minnich be praised.
Fast, unobtrusive, and regular software updates
Better touchpad and touchscreen support than any other Linux
Perfect integration between local files and files on Google Drive
A bare-bones userspace that is not bristling with security vulnerabilities
Software including the kernel is peak-optimized with profile-guided feedback, specifically and separately for each model of Chromebook, unlike most Linux distros that ship barely-optimized builds without PGO and targeting k8-generic.
Given that most of the time, I just run Chrome and Electron apps, it makes sense.
As soon as linux can run on M1s stably, I think Flex would follow suit as well.