I honestly think removing Fastmail from the title would be waaay better for everyone.
Some people even wondered if an email account is included in the price... (because of, ... Fastmail in the title).
Anyway, they only refer to JMAP which was created apparently by Fastmail. It has nothing to do with the company, besides using their open email API protocol.
I've had an oryx pro for about 8 months now. I've spent zero time trying to get Linux working correctly. You can go from zero to programming, playing games, etc, in about 5 minutes.
Managed to do this on a Teclast, HP Envy, Dell XPS, Chromebook Pixel LS and Lenovo (Thinkpad and Ideapad)
Not exactly sure why people think it's so remarkable to have things working correctly in Linux on the same hardware other OEMs use. CPUs these days are more SOCs than they ever have been and both Intel and AMD are pretty good at making sure support is in the kernel.
Installing Linux and getting things running like Steam has less steps than Windows 10. It's not a remarkable achievement anymore. You don't even need to touch the command line. Open Software Center, search for Steam, click the Install button. Done.