> How is that philosophically different than using Windows
He has entirely FOSS stacks for his devices? Quite literally no proprietary code wherever possible?
They're not "3rd-party privacy tools" he's making a point of, outside of a browser which isn't what the complaint is about on Windows, since that is outside the bounds of OS-specific complaints, but he mentioned it nonetheless since you asked about it.
You're critical of Windows for collecting data, but use other software that collects similar data, saying "that's fine I have 3rd-party privacy tools". These same tools have existed for Win10 since week 1.