If you're not happy with the desktop environment your chosen distribution uses, you have plenty of options available to you. Find out how easy it can be to install here.

Read: How to install Arch Linux in VirtualBox Should I install Ubuntu or Kubuntu? Deciding between Ubuntu and Kubuntu depends on users’ needs and computer specs.

If your Mini PC hardware isn't very powerful or is on the older side, there are several excellent lightweight distros, many of which are based on Ubuntu, that you can consider as alternatives.