(This isn’t to say that Google and ChromeOS are the best, but I feel like the reality isn’t completely black and white (also not that you guys are saying it is))
In that Twitter thread, GrapheneOS tries to counter telemetry concerns by saying this:
A small amount of uninvasive telemetry isn’t the catastrophe people make it out to be and LOTS of open source software including Firefox has similar telemetry to macOS. You aren’t avoiding all telemetry, etc. by using open source software, and it’s a tiny aspect of privacy.
Couldn’t one install Steam using the Linux development environment?
ChromeOS has added device passwords as an alternative to Google Account passwords
Google sponsors the Linux Foundation and supports lots of open systems with the Summer of Code
Also this: