Yes, you can install both Windows and Linux on the same drive and boot from it.
Yes, you can install both Windows and Linux on the same drive and boot from it.
Yes, you're correct. It's simpler if your operating system is Windows.
When working with Ubuntu, the system should handle it automatically.
Linux should handle everything during installation, or you might reduce your Windows partition and simply install Linux into the unused space. I’d prefer Linux to manage it rather than letting Windows attempt to alter the partition it uses.