cross-posted from: https://piefed.world/c/tech/p/1246200/pdf-a-hacker-s-arrest-reveals-microsoft-can-track-users-ip-history-even-with-vpn-full-we
You can read about it yourself here on page 12 (or page 8 of affidavit), then page 33 and down (page 29 of affidavit)
First one to notice this: Security researcher, VX-Underground.
I just verified that debian livecd booted inside a ventoy/qemu gets a new id every boot. So as far as tracking, single session only if firefox-ESR gives that data up.
Of course as soon as you log in to social media, steam, what have you, telemetry all over again.