Agreed but would you mind sharing which Samsung connections you are blocking in order to prevent ads from being displayed on the TV? I'm running NextDNS.io too (router config) and their logs show a plethora of Samsung queries that are all allowed, but I also have a Samsung phone and refrigerator. The only one they block by default is smetrics.samsung.com
In the Privacy tab, you can specifically select a "block of rules" for Samsung devices. Also, EasyList will block a lot of requests.
Unfortunately, NextDNS will not show from what device a blocked request came unless you give it a name in the app, and of course there is no NextDNS app for Samsung TV's. Some suspicious domains I see often in my logs:
But, in short, I have loaded NextDNS with the most common blocklists (EasyList, Anudeep etc.) and added the "Samsung" list. Result is: no ads anywhere on my 2018 smart tv.
