pihole, adguard, nextdns etc work at the network level. meaning you do not need to configure client devices. its one and done. also means that your dummy client

pihole, adguard, nextdns etc work at the network level. meaning you do not need to configure client devices. its one and done. also means that your dummy clients like TVs, IOT devices, etc... are going to be participating as well. you can't install ublock origin on a TV, or my dog's wifi collar, etc.