Is this a technical opinion backed up by facts, or merely an aesthetic one?
We've got three OS's in our house, and honestly, apart from individually subjective things such as whether and where you want a dock, I don't feel the display manager or aesthetics are inherently any better or worse under my Ubuntu Desktop than Mac OS.
Honestly though, I'd say the same for windows 10.
The truth is for the last 5 years or so we seem to be yo-yoing around in some local minimum of GUI interfaces. I can't honestly put my hand on my heart and rate any of them over any of the others in terms of user experience.
I love Ubuntu and it's the only tolerable desktop Linux that let's me get something done instead of constantly fixing the OS and searching for workarounds.
But even Ubuntu and Gnome have frequent glitches. They are minor annoyances that I can't even list well. Stuff like an icon would get stuck to the mouse cursor and I have to lock the screen and unlock again to fix it. Or I'd get light text on light background in the context menu. Or the font gets messed up randomly. Or alt tab works weirdly (yes I searched and fiddled with it, it's still not how I expect it). Many more small things. I should make a list but then again, I'm trying to get stuff done, no to compile meticulous bug reports.
It goes beyond that what the eyes can see, the way how everything is integrated also counts, specially on the developer experience of OS frameworks and how most applications make use of OS IPC capabilities.
We've got three OS's in our house, and honestly, apart from individually subjective things such as whether and where you want a dock, I don't feel the display manager or aesthetics are inherently any better or worse under my Ubuntu Desktop than Mac OS.
Honestly though, I'd say the same for windows 10.
The truth is for the last 5 years or so we seem to be yo-yoing around in some local minimum of GUI interfaces. I can't honestly put my hand on my heart and rate any of them over any of the others in terms of user experience.