Comment by hagbard_c

ChromeOS and devices it was made for are not the best start in Linux-land since it is Linux just like Android is, i.e. it is based on a Linux kernel but for the rest quite different from 'standard' (GNU-) Linux distributions like Debian + derivatives, Arch, Fedora etc. Maybe you can get that userland tool from ChromeOS to work in Debian, maybe not.

Even though you're trying to get Debian installed on the thing I'd also refer to the Arch wiki for information on how to get things working right:

https://wiki.archlinux.org/title/Chrome_OS_devices

Arch being what it is it has attracted a host of knowledgeable users who have collected their information about how to get things working on different systems in an organised and usually comprehensive way on that wiki. Much if not most of what is written there is also applicable to getting non-Arch distributions running on those systems.