I mean, exactly how invasive are default operating systems? (Like Windows, Mac, Chrome OS, Android, iOS) Do they log your keystrokes, log passwords, capture screen, upload your photos, videos, or audio? (Assuming you aren’t a target of government) Is it even possible for the average person who doesn’t feel comfortable messing with installing operating systems to have any privacy?
I’m not as worried by data logged by the os as such, but don’t want it sold to third party ad networks.
I use both macOS and Windows daily for combined work/personal stuff so hard to avoid. I trust Apples use of my data a little more than I trust Microsoft.
All my devices are always behind a VPN and always behind a DNS filter that blocks most vendor tracking from Apple, Microsoft etc. You have to allow a fair bit through for some functionality to work though.