[rootsudo]

DNS is better, but I find that you need to have a dns server rather than modify/update the host files on router because it'd kill it.

Pihole is great, but you have to maintain a pi. It's not hard, but the other issue is also training and education when users/family is not on it.

In the end, subscription purchases for youtube, help because the ads are really horrible on mobile platform and not blockable easily on iphone.

I went all over the place with this comment, but I agree DNS level is better then browser level. The IP is still enumerated on a browser adblock level, but not on a DNS level.