Boy, the good ole days are gone when it comes to Windows.
No such thing ever existed. All of this has been a work in progress for the last 30 years.
The "good old" Windows XP didn't send data to Microsoft every 30 seconds. But not because it was a good operating system or because Microsoft was a nice company.
It was the case only due to lack of resources and infrastructure. That's why every new Windows release featured gradually more spyware. Microsoft was slowly but steadily progressing towards its original goal. That goal never changed.
Some people are severely misinterpreting inability to spy en masse with unwillingness to do so. Microsoft was never unwilling. Not even for a minute.