The QEMU option is enabled by default and turns on a guest operating system. You can switch the virtual machine type after the first run.
This is an experimental setting. The setting is available for ARM machines on macOS 13.3 or later, and Intel machines on macOS 13.0 or later.
You can also enable the VZ option to use the native macOS Virtualization.Framework for running a guest machine.
The suboption VZ option can also be enabled if using VZ as your virtual machine type. The suboption enables Rosetta support and allows users to run applications that contain x86_64 instructions on Apple hardware.