If you need to use virtual machines on Linux, try Virt-Manager. Virt-Manager is more reliable than VirtualBox. Virt-Manager is completely free and open-source. I'm a long-time supporter of VirtualBox.

Virtualization has become a fundamental technology in the world of computing, allowing organizations and individuals alike to maximize their hardware resources, improve efficiency, and enhance ...

VirtualBox is my go-to virtual machine technology. Not only is it free to use, but it’s also very powerful and makes it easy to create VMs for all types of hosts — from Linux, macOS, Windows and more.