[kunday]

If you are keen to try out how it works, give https://www.nextdns.io/ a try.

I'm not the maker of the app not can vouch for its integrity but you get a sense of how much network bandwidth ad and tracking takes up on your network.

[bscphil]

This doesn't really explain how a PiHole compares to an ad blocking extension. Both block ads at the network level so your browser never has to download them.