I use Tailscale when the need arises, but I honestly don’t see ads on my phone very often even without the Pi-hole between good browsers, revanced, and not playing shitty mobile games.

I was mostly just questioning the usefulness of AdGuard on a tv box. It seems to have a pretty narrow scope, which could be better addressed through other means (better in that DNS-based blocking helps the entire network, not just the tv).