Comment by KronisLV

You probably mean the Unity desktop, which now seems to be maintained separately from what I can tell: https://ubuntuunity.org/

While I think that your take on Apple UI/UX not being good is rather contrarian (given that many quote them as some of the best in the industry), I agree that using Ubuntu with Unity was actually a reasonably pleasant experience, at least in the later years when they had addressed most of the quirks that the earlier versions struggled with.

Then again, I'm the kind of person who is also served perfectly well by something as simple as XFCE or LXQt, so maybe I'm a bit biased and my standards aren't the highest. Yet, I really appreciate a UI that's functional and feels snappy.