VirtualBox is ridiculously simple to set up and get virtual machines going. Shared folders, shared clipboard and much more are no issue.
But.
It eats resources. The installed virtual machines (VM) run relatively slow. What have you found to be feature comparable - and most importantly more resource-efficient - alternatives for running VMs under Linux?
Pretty damn easy.
qemu-img convert -f vdi -O qcow2 Windows10.vdi Windows10.qcow2
Here’s a more complete guide: https://cubiclenate.com/2024/05/30/converting-vdi-to-qcow2-step-by-step-guide-for-virt-manager-migration/