Steam

I'd be careful about that friend

With the aggressively anti-user and poorly thought out moves tech companies have been making lately, I wouldn't put it past Microsoft to start using little discrepancies like that to go after people

It would be dumb, way more effort than it's worth, and likely extremely invasiv... Probably not likely, but I would've said the same about a lot that's happened in the last couple years.

But all the same, in your shoes I'd look into blocking that on the off chance it puts a target on your back