On: Windows OS, Services and Apps: Network Connection ...

[Avamander]

Unfortunately running your own DNS isn't an option in every context. Not to mention, 3MB is nothing, it shouldn't struggle with that.

[ridgered4 → Avamander]

Is blocking on a DNS level even sufficient? I'd imagine there are hard coded fall back IPs involved at least sometimes.

[not1ofU → ridgered4]

A lot of IOT devices (including smart TV's), completly ignore DNS

[netr0ute → not1ofU]

Easy! Just set router level firewall rules to redirect DNS.

[Avamander → netr0ute]

DoH and DoT are slowly changing that, it's getting troublesome to redirect.

[Avamander → ridgered4]

It certainly helps, but it's not perfect, no.