There are two ways to do it. The first is to use iOS content blockers that you get from the App Store. At a minimum you’ll want AdGuard. I also use Baking Soda, Banish, Extract, Vinegar, and StopTheMadness. (Yes those are all apps.)
If you want to go the free-ish route you can use the Orion browser, from the App Store, which then allows you to use Firefox plugins.
Either way, you can and should delete the YouTube app and watch through your browser after installing whichever filters you choose.
The Samsung tries to “identify” what’s on an hdmi input before it will connect. It seems to call out to the internet to do that because it takes forever to fail and show you the display anyway when it’s not connected to the internet. Even when it is connected, it takes a stupidly long time to switch to a new input. I super hate it and will never buy another samsung tv.
I guess the lg needs to boot tizen before it works, because I see the logo briefly but then it goes directly to the last used input with no other bullshit, so it’s fine with me.
https://en.wikipedia.org/wiki/Salt_dome