I turned off QoS and immediately am getting 930 on speedtest.net from the desktop browser!
Also, very helpful to know Issue 1 here. I assumed that the router would be the best spot to test since it is farthest upstream (other than the modem). I didn’t know it could pass traffic faster than it can decode, but that makes sense that people would have tried to make that the case. The router is still getting ~500 Mbps while the browser is much closer to the full 1000.
“according to Western Officials”, i.e. the people who are (formally or informally) at war with Russia and have been isolating North Korea. They are a very biased source