> I thought residential proxies are already banned from SmartTV apps by virtue of practically every APK under the sun being subject to the Google Play terms of service.

The platforms in question here are webOS and Tizen, neither of which are Android or use the Google Play Store.

That only applies to the subset of TVs that use Google TV/Android TV.

Not so much for the rest of them that have operating systems with names like Roku TV OS, Tizen, WebOS, and Fire TV OS. They do their own things.

LG webOS is not Android though, it's from the old Palm/HP devices of the early 2010s. And I'm pretty sure there are still tons of play store apps with these proxy SDKs in them, advertised/consented or not.