Yes, it is stamped into the Windows VM running in VirtualBox in Linux, just like it is if Windows is installed "native" on the hardware.
But note: It is not part of the computer's hardware. So if you installed Linux "native" on the hardware (e.g. wiped the disk and installed Linux from scratch), the Linux system is untouched when you install VirtualBox and start up a Windows VM. It's only the Windows VM that gets the GDID.
Might as well put tracking and listening devices in all of us at birth.. This is out of control.
My understanding is various hardware parts leave similar tracking traces even with a fresh operating system.
I know most printers leave micro data that can be used to track anything printed back to a given printer. I was on a grand jury when this was exposed in detail. Same with copiers.
So if you leave a ransom note, go the newspaper word cut route and wear two sets of gloves, a hair net, and a mask.
Yes, I wiped the HDD and installed a 1TB M.2 for the root drive. Helped a lot when I ran readpst. I'm no Linux geek, so piping the USB microphone into the VB was a nightmare. I've been on and off the terminal with Brave AI and Grok for the last two weeks and have learned a good bit about how to keep an AI focused and sustaining the bigger picture. I'm one of those non-software types who keeps his backups on air-gapped NTFS Password drives.