Doesn't HDMI have built in Ethernet these days? So any HDMI cable of a certain specification is also a network cable.

I remember these things being discussed a while ago on here, how TVs use their own hard coded DNS ("for safety") rather than any network provided DNS (to avoid filtered DNS ala PiHole), how there's Ethernet in a HDMI cable, how other wireless networks are tried, and how eventually they'll go the car route and just embed a wireless modem in the device.