Car -> unplug the cellular modem (more or less easy)
TV -> used as dumb monitor with a Linux HTPC
Phone -> GrapheneOS
PC -> Linux
Social media -> /dev/null
Email/DNS/cloud -> my own
The real issue is that most people are not aware of these issues and may even (unintentionally) compromise your own privacy by posting information or pictures of you to Facebook or other similar places.
That made me chuckle, absolutely right though!
I'm surprised how many people think that keeping a low profile will matter in a society that attacks people for things you could discover from vehicle position data. In that society, you'll get attacked if someone wants to do it and they'll manufacture the pretext.
It's not difficult to imagine something like pandemic restrictions, where a digitally-enabled government could fine/arrest people based on location data, either because they travelled outside an allowed area or into a restricted one. Or they have data showing they were in close-proximity with too many people etc etc.