Multi Commander is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is Double Commander, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Multi Commander and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Multi Commander are Midnight Commander (Free, Open Source), Thunar (Free, Open Source), Forklift (Paid) and fman (Freemium).
Thunar is a new modern file manager for the Xfce Desktop Environment. Thunar has been designed from the ground up to be fast and easy-to-use. Its user interface is clean and intuitive, and does not include any confusing or useless options.
The Finder is the first thing that you see when your Mac finishes starting up. It opens automatically and stays open as you use other apps. It includes the Finder menu bar at the top of the screen and the desktop below that.