I couldn’t find it again, sorry. But it wasn’t any real brand that did this (yet), but cheap noname TV clones (similar to those Trojan horse android boxes). Not something you’d trust anyway, but didn’t expect them trying to bridge the gap to get telemetry.
That’s not on Nvidia but the fault of Google tho (they use stock Android TV) you can just use another launcher and set it to auto start ( not like the Fire Stick where they barred that option with updates sigh).