In most distros a simple default install (like Kubuntu or Ubuntu) things are consistent. Even RedHatEnterprise linux is very consistent. Sure a mac looks nice as it is always available in a 2K> glossy display.
Once you go to install stuff things are made of different tool kits. In principle it is the same for macOS. Yes, all Apple stuff mostly are consistent. There are lots of dialogs inside System Preferences that seem old and not migrated. Also, once you install MS office, and other dev. stuff from macports things go weird.
Once you go to install stuff things are made of different tool kits. In principle it is the same for macOS. Yes, all Apple stuff mostly are consistent. There are lots of dialogs inside System Preferences that seem old and not migrated. Also, once you install MS office, and other dev. stuff from macports things go weird.