Are you aware of any that do this? I've been using pihole for years and have no complaints. I've only seen smart TVs seem to do this, although it's usually configurable.

One example that I was remembering was Chromecast. It needed Google DNS to work at all.

In general, though if an app sticks to "known good" DNS over HTTPS and pins its certificate to boot, it will bypass DNS-based adblocking very easily, and additionally will punish you by not working at all if you try to do any firewall/routing trickery.