So if I understand what you're saying, if someone asks you "Hey, could you recommend me a general purpose Linux distribution?", you'd recommend them Ubuntu Server rather than just straight up Ubuntu?

I'd agree both could be used in a general-purpose way, but I'd definitively call one of them more general-purpose than the other.

95% of my VM's run Ubuntu Server LTS, so yes, that is what I would recommend if I was a recommending person.

If they need a general purpose distro for a server, absolutely.

That would likely be a better recommendation than android.

But that wasn't the question, what they ask is specifically "Hey, could you recommend me a general purpose Linux distribution?", would you still first recommend Ubuntu Server?

Sure, why not?

Because it isn’t general purpose, it is for servers.

You are being _/

Most Linux server distributions would be expected to be headless.

"General purpose" Linux distributions (not "server") typically would include a GUI desktop.

A GUI Linux distribution feels vastly more niche than a headless one.

Really?

What are some major Linux distributions that are only headless?

What is the market share of those Linux distributions compared to Linux distributions that have a GUI desktop?

This is a bit akin to saying that cabriolets are not a niche product because many major carmakers have one as a part of their wider lineup.

If we're counting the millions of servers that run the Internet, probably a lot more of them than GUI desktop Linux installs.