Zorin OS 16.2 does not include SELinux by default. If you wish to install and enable SELinux, you can follow these steps:
1. Open the terminal and run the following command to install SELinux utilities:
sudo apt-get install policycoreutils selinux-utils selinux-basics
2. After installing the SELinux utilities, run the following command to enable SELinux:
3. The above command will prompt you to reboot your system. After rebooting, SELinux should be enabled on your system.
Note that SELinux can be complex to configure and may cause issues with certain applications or system components. It is recommended that you familiarize yourself with SELinux and its configuration options before enabling it on your system.