It is connected with a 1 Gbs cable but I run the test with one client uploading and the other downloading and ethernet is full duplex. Still, if I would test with both clients downloading you would expect at least 900 Mbps, not 600.
I also wonder why practically no reviewer tests with more than...
I don't think that's true. If you look at the Ruckus product guide you can see that every WIFI 6 2x2:2 access point has a maximum PHY rate of 1200 Mbps. Every WIFI 6 4x4:4 access point has a maximum PHY rate of 2400 Mbps.
RUCKUS Product Guide (commscope.com)
I use two laptops with a intel...
I bought the WIFI 6 tp-link EAP660 access point with a 4x4 5GHz antenna configuration. When I connect with a single WIFI 6 2x2 client I get speeds of up to 750 Mbit/s. When I connect another WIFI 6 2x2 client simultaneously the speeds more than half. So a total of 600 Mbit/s combined for the two...