Parrot OS, in addition to being available in the Security and Home editions, also uses various Desktop Enviroments (DE). Each DE has its peculiarity, but we recommend trying them out before deciding what to install (however, keep in mind that you can install multiple DEs on one OS).
Being a graphical interface through which the user can interact with the operating system, the possibilities to modify the various components of the DE are many. Each of the following DE gives the possibility to be customized according to one's tastes.
The difference between the three officially supported DE mainly concerns graphic aspects.
Feel free to download the edition that is useful to you and with the DE that you like the most!
If you have another DE, you can install MATE by:
sudo apt install parrot-mate
If you have another DE, you can install KDE by:
sudo apt install parrot-kde
If you have another DE, you can install XFCE by:
sudo apt install parrot-xfce