Consider something like Pi Hole (https://pi-hole.net/) as the DNS on your network. Where it will affect all devices on the network.
My ISP won't but there are ways around that. The biggest problem I've faced is on the modem side of things, finding something I'd trust to be open to the internet, ideally something I can install openWRT or similar on and something I know will work in my market. It's an options minefield.