Yeah, solid counterexample. Wikipedia and other Wikis have a clearly defined goal, i.e. collect factually correct information about a specific topic, which is also a goal shared by enough people to drive collaboration.
Another cool example is the Mutopia Project, which basically archives sheet music. Contributors can just pick a piece of music and transcribe that, and they kind of don’t even have to talk to anyone for the project as a whole to benefit.
But then there is lots of examples, like writing a new song, writing a new novel etc., where the goal is not clearly defined, where it’s difficult to collaborate, because what you contribute might not mesh well with what the others provide.
My workplace preinstalls Ubuntu, personally I’m using openSUSE. I don’t even think that Ubuntu is particularly bad, I’m mainly frustrated with it, because it’s just slightly worse than openSUSE (and other distros) in pretty much every way.
It’s less stable, less up-to-date, less resilient to breakages. And it’s got more quirky behaviour and more things that are broken out-of-the-box. And it doesn’t even have a unique selling point. It’s just extremely mid, and bad at it.