The VMs have a reasonably standard interface, so do container images, so kinda either could work as your ‘everything’. Alternatively just make a system image o

The VMs have a reasonably standard interface, so do container images, so kinda either could work as your ‘everything’. Alternatively just make a system image of the entire PC, setup exactly how you want it, with some common hardware that you can expect to be available in 10 years -like a standard intel cpu.