-iCloud Private Relay (native VPN-like thing)
-uBlock Origin Lite
-AdGuard DNS
(Using fresh private tabs for small privacy gain?) Better than third-party skinned browsers right? Always happy to be informed otherwise.(AdGuard does have an option to supplant uBlock in this stack btw, does “advanced” blocking https://adguard.com/kb/adguard-for-ios/web-extension/ which is nice but trust $mm-refusing uBlock dev gorhill forever)
¹ In this case, the developer – not the musician. I really liked the user interface of uMatrix.
And even then when I read about defects in Apple software that means a firewall like Little Snitch isn’t perfect (macOS) I think an external device (mobile VPN router?) is going to be essential for some threat models.
(& uMatrix looks great!)
I already use uBlock Origin and iCloud Private Relay (as advised in your original post). I also use Private Browser tabs and regularly remove all “Website Data” from Safari (minor inconvenience in that I have to re-login to sites that I have an account on).
I’ve just installed AdGuard on my iPhone to try it out but see that the DNS protection requires a Premium subscription (it now occurs to me that I could possibly install Wireguard to connect to my VPS where I’m already running my own DNS server). I’ve also `never looked into supervised mode; I always assumed it wasn’t relevant for personal devices.
Thanks for the reply.