iCloud/iMessage and NVram values

I have MacOS Sierra and Catalina installed on VirtualBox on Windows (if it matters). Works nicely.

My question concerns the use of Apple ID (and iCloud, iMessage etc) on non-genuine Apple hardware.

• Do I risk locking my Apple ID (which I am also using on an iPhone)?
• How high is the risk?
• Does Apple check the NVram values and if so, which values?

I found the following relevant values: - System Serial Number - Hardware UUID - Board ID - Board Serial - System UUID

Which of these is critical and do generators exist which generate these values?