TecMint published a tutorial showing you how to Install QEMU/KVM on Ubuntu to create virtual machines.
How to Create Virtual Machines in Ubuntu Using QEMU/KVM Tool
In this guide, we will show how to install QEMU/KVM on Ubuntu 20.04/22.04. In addition, we will also show how to create a virtual machine using an ISO file.
How to Create Virtual Machines in Ubuntu Using QEMU/KVM Tool