Unfortunately I have to have the phone with me due to caring for aging parents that might need to reach out in an emergency. Otherwise the cell phone would remain at home.
Which is why my phone has Wi-Fi and bluetooth disabled when I leave the house, use no "courtesy" cards, and pay with cash as much as possible.
Small steps to take, layers if you will. But convenience is winning out over privacy. Don't even get me started on Flock.
Apologies to the OP for...
Private DNS would be a single layer of protection (of many hopefully). Would this not prevent (or at least impede) your ISP from harvesting and selling user data? Would using ad-blocker, malicious content, etc. lists be another layer of protection by reducing potential attack vectors?
I...
I was referring to your comment about chasing privacy being a foolish pursuit. Sorry, I thought that was clear when I only quoted that statement.
All of the companies I mentioned gobble up any and all information they can grab from your internet activities. And would be happy if you did...
I don't know if this applies to all phones, but you should be able to set Wi-Fi calling as the preference. In my case (Pixel 9a, GrapheneOS) the setting is located under Network & Internet; Internet; Mobile Data (Verizon). Click the options cog, scroll down to Calling; Wi-Fi Calling; and set...
Same case with Synology. They offer a very old version of Plex, so you'll have update manually with the latest version directly from Plex.
Happily running my Plex server on a Synology DS920+ for a number of years without issue.