Is emulation and/ or virtualization performance faster when the guest and host OS are similar? If yes, how big, relatively speaking, is the difference? And whether the answer is yes or no, why is it so?
Will a x86 Windows host emulate and/or virtualize an x86 Android guest faster than it will an ARM Android guest?
In the following two examples, please ignore the fact that Debian is arguably more resource efficient than Windows, and simply focus on relative emulation/virtualization performance.
Will a Windows 10 host emulate/virtualize a Windows 7 guest faster than it will a Debian guest? (All are x86.)
Remotely similar OS
Will an OS X host emulate/virtualize a Debian guest faster than it will a Windows guest? (All are x86.) (Since OS X and Debian are both UNIX or UNIX-like.)
I would appreciate if any answers used many layman terms and analogies to explain in a way that people who are not computer scientists could understand it.