I have been looking for a dual boot Android Windows tablet PC for a long time and can't find anything that's why my question now:
Can you also install android on a tablet PC with Windows, so to speak as dual boot and then select the operating system in the BIOS?
Yes, an Android x86 should still exist. But never tested it myself.
https://osdn.net/projects/android-x86/releases
The first thing that comes to mind is the free BigNox emulator; available here: https://de.bignox.com/
You can install it on your laptop like software and it is then like an Android device, with all Android functions. There you can set which resolution it should emulate and whether it should emulate tablet or mobile phone view.
That should work, only you have to pay attention to it I don't know how android installs the boot loader that you can no longer boot into windows afterwards, but if it works you have no google services on the android
Bluestacks;]
I advise against such "experiments". Some people have already "destroyed" their PCs with it.