HDMI 2.1 with AMD for example.

you get 1-2 Gbps down but only something tiny like 50 Mbps up

That’s exactly what you get in Australia, even if you have FTTP, 95% of ISPs only offer up to 1000/50Mbps, and that’s if you live in the big cities. Mine costs ~US$70/mo btw. And they have a ‘typical evening speed’ that drops to 860/42Mbps (I’ve never heard of such a concept outside Australia. Yeah, totally not a scam).

A handful ISPs offer 1000/400Mbps and you’ll be looking at ~US$125/mo. Anything faster you’ll be handed with astronomical commercial bills.