I just downloaded atom-amd64.deb from the homepage and running it installed Painter on my Pixelbook.
Just to clarify, by homepage you mean https://atom.io yes?
Also, can you still reproduce this? I downloaded the .deb just now but didn’t see the same issue.
Lastly, do you still have the .deb on your computer? Can you run
dpkg-deb -I atom-amd64.deb and share the output?
False alarm, the package is fine.
I’m a newbie idiot with Crostini on ChromeOS, and didn’t understand what was wrong with it. I’d delete this topic but I can’t.