Is it a good idea to run virtual machine on a different X server? I can switch between them using Ctrl + Alt + Fx shortcuts. If my default X server hangs/crashes, I can still continue to work with the virtual machine. Are there any drawbacks/issues I should be aware of? I didn't face any issue so far. What is the cost of running an additional X server for virtual machine in terms of cpu, gpu, memory, disk etc,.? Is it same as running them inside the same X server?
Edit: Basically I am trying to understand which one is better?
XServer |-----> Virtual Machine 1 |-----> Virtual Machine 2 |-----> Virtual Machine 3
XServer1 --> Virtual Machine 1 XServer2 --> Virtual Machine 2 XServer3 --> Virtual Machine 3