Assuming you mean the GUI side, as a full time Linux user: Unity is infuriating. I run MATE and recommend trying Cinnamon (Mint), Gnome3 (Fedora), KDE (Kubuntu), or https://elementary.io/ for strong hints of apple flavor.
I also don't like the dock but at least that can be made to auto hide. I do like lenses and I wish I could have them in the Gnome 2 look alike DE I'm using on Gnome 3 right now (Ubuntu 16.04 with gnome-flashback and some customizations, included merging the top bar in the bottom one.)
* Hidden menus. Can be changed, but bad defaults.
* Top Bar.
* Left aligned window controls. It's not an option to change anymore.
Con: All the UX I don't like about MacOS. Pro: At least Edit->Cut works in the file manager. YMMV 100%.
Gnome3: Has a "launcher", but it's default hidden. I use meta/win key and type what I want.