[hnlmorg]

QoS is designed to minimise these issues by prioritising real time protocols and other latency-sensitive traffic over other traffic. But that doesn’t mean that slowdown isn’t happening.

With 500Mb you’ll be fine 99% of the time. But you don’t have a whole lot of spare head room. And I’ve found that I have dipped into that headroom a surprising amount (eg when I’d need to pull large docker images as part of a new build process I’m testing locally)

The point of Gigabit isn’t that IPTV is better quality, because it isn’t going to be. It’s so that you can get more done concurrently without depending on QoS to save your arse.

Also you made a comment elsewhere that WiFi speed would be less than gigabit but that’s not true. WiFi 6 (which was released 5 years ago) supports up to 10Gb/s. And WiFi 5 (802.11ac) can do up to 1300Mb/s and was released in 2013 (more than a decade ago!).

The Oculus Quest (original) supports 5GHz 802.11ac and in fact requires it for wireless streaming. I have noticed that games will download very fast on my Quest 2 over Gigabit internet too.