More so that they used the same Windows machine where they were signed in with their real personal Microsoft account as the machine they used for their illicit actions.

VPN only masks your source IP, not any of the other identifiers, of which we now know a new one.

I'm more worried about other "enemies" of the American Regime, such as journalists, syndicalists, foreign politicians (including in "allied" nations) and even just people who have access to things as simple as internal strategical information in companies that compete with American companies.

I mean, once you have access to it thanks to things like the Cloud Act and the Patriot Act, it's not exactly hard to use internal access to Microsoft and LinkedIn systems to automate mass industrial espionage by linking people to certain positions in companies competing with American companies and specific computers to those people and then push a special Windows Update to track what they're doing and documents that pass through them (though with Windows 11 I bet the eavesdropping part is already done by default on all computers with the data sent to MS).