Earlier quoted context omitted.
What are the criteria required for an OS using the Linux kernel to be called a “distribution” then? Including GNU or free software in the definition seems arbitrary... Is there a class of applications (that aren’t apps from a store) that must be runnable? Or do you mean that distro is short for “GNU/Linux distribution”? I’m not arguing for/against (since it’s obviously a long-standing debate), what I’m interested in…
Yes, a distro implies GNU/Linux. Neither ChromeOS nor Android expose the Linux kernel directly to userspace apps, so for them is irrelevant what kernel is being used.
Or BSD ;)