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.
Windows 10 support is ending, and I'm planning my move from Windows to Linux on both laptop and desktop. The biggest hurdle for me is the usual: software that doesn't have Linux equivalents. It's not ...