That's every virtual machine that's ever existed. They are slower than metal and you're running two OS stacks so you'll draw more power.
Hot forking would be a killer app here - far faster to clone a VM, screw it up, burn it down, and repeat than anything else
Not every virtual machine, try microVMs.
I am building one now that works locally. But back in the day, I saw how extremely efficient VMs can be at AWS. microVMs power lambda btw