My guess is that it was downvoted because it violates two of the comment guidelines:
> Comments should get more thoughtful and substantive, not less, as a topic gets more divisive.
The parent comment is neither thoughtful nor substantive, merely agreeing with the grandparent -- a verbose equivalent of a "This!" comment. A better comment might include the commenter's reasoning, their experiences with other platforms and their pros and cons, or how they have used Ubuntu personally or professionally, for example.
> Eschew flamebait. Avoid unrelated controversies and generic tangents.
The parent's implicit dismissal of Windows or Mac desktop platforms as un-enjoyable could be interpreted as flamebait, since choice of operating system can be a common point of contention.
Hopefully this explanation helps. Since the comment was low-quality but not flagrantly bad, I assume it will pick up one or two downvotes but not a flag, and will sink naturally down the discussion as higher-quality posts supersede it.
I don't think people realize how important a well supported DESKTOP experience is for open source adoption by the mainstream users.
The mainstream doesn't care about zshell or fish shell or vim.
All they see is the graphical desktop experience, for their email or browser.
If that market can be brought into the open source world away from the giant companies that would be a huge win for open source.
And Ubuntu is currently the only real game in town, and having used it myself since v11 or something it's come a long long way, to the point where my grandmother can use it.
That's clear! It's just that many of us have been conditioned by internet snark to read comments like the GP cynically, unless they contain disambiguating information (as your comment here does). You did nothing wrong, but I have a hunch that ambiguity may have been the source of some downvotes.