Using what for a client, and what's your test case?
I've done some minimal performance testing on my recently-acquired U6 Enterprise APs. The only wireless clients I have today that can do 6GHz are iPhone 15s, and what I see with those is that speedtest.net downloads can more or less reach the 860Mbps limit of my fiber service, while iperf3 testing download from a local wired machine can get close to the 935Mbps rate that I get on wired connections. Upload is a great deal slower, around 500Mbps for the iperf3 case, but I'd blame the phone for that not the AP. I don't try to use channels wider than 80MHz in the 5GHz band, so transfer rates there top out at 600-800Mbps depending on the phase of the moon, which is more or less in line with expectations for my 2x2 clients.
No experience with the other components you mention, so I can't say what their performance is like.
You might be better off asking this question on the community.ui.com forums, where there's a great deal more expertise about Ubiquiti products than you're likely to find here.