a browser with security extensions (although a good browser should be built with security as a design principle, not as an "add-on")

ESNI and DoH (even though Cloudflare can see the aggregate)

DNS caching and blocking in the subnet

iptables/nftables blocking of undesirable IP address ranges by the router

edit: It's safer to leave the dysfunctional WWW alone and use only RSS.

However, local caching on the Pi might yield faster lookup time.

Is their any evidence that Google killed Google Reader because it interfered with their Ad/user-tracking metrics business?

Ideally you're using a multi-layered approach, meaning that much of the ugly stuff should be filtered out upstream of your browser extensions anyway.

Yes. Privacy Badger was not just an anti-tracker. It's also something of an ad blocker. Since ad sites tend to track, it learns to block them.

Checking "cnn.com" right now, Privacy Badger is blocking 36 sites. These include "static.ads-twitter.com", "c.amazon-adsystem.com", "www.googletagmanager.com", "ad.doubleclick.net", and "amplify.outbrain.com". Blocking those knocks out most of the ads from the big players. Two of those are Google's, and they probably don't like being blocked by a large number of users.

Taking that away to prevent a theoretical approach to tracking seems like a sell-out by EFF.

1. Open every new website (the one which doesn't have a saved container for it) in a new random/untagged container - destroy that container and data/everything when I close the last tab of that site

2. Unless I tag/name that container for that website and then persist it the way you do - and give me one click operation to tag name and (maybe select an icon/colour for that container)

3. What about giving website favicon as an option to the container icon

4. Get rid of those "Oh you are opening this website B (container_B) from a website A (container_A) - do you want us to open it in container_B instead"? "Always"? Yes! Yes! Make it default or give me an easy options to make it default damn it - give me an option the first time where I can mark "always do this"!

5. Do we really need special container for Firefox and then for the rest? Why not ship with a default already set container in the Multi Container add-on that's Fb container?

There's an option "Select a container for each new tab" but it's not very helpful as it lets you just choose either one among all the existing containers, or "No container" and that is blocking pop-up.