Yes I remember when UK regulator blocked Microsoft from buying Activision there were posts on r/Microsoft regarding their ability to send update to brick all Windows installs in UK and delete all Azure data of UK companies, how UK was a small insignificant market compared to BRICs so it wouldn't hurt MSFT stock price.
Given JD Vance obviously hates UK/EU way more than Trump, and he may be next US president, he may in fact threaten Microsoft to do it against UK and EU.
On one hand the dependence on Microsoft is generally bad.
On the other, we shouldn’t take the opinions of the sort of fan who hangs around on a corporation’s subreddit too seriously.