500mb over wifi is good! I have an 800mb connection on community fibre with a Linksys Velo, on most devices I get about 180mps down /150mbs up on wifi.
That’s still much faster than any single device is likely to need though. It’s enough to stream comfortably in 8k with a lot of headroom left for background data for example. The only reason you want something like 500mb+ is because you have a lot of devices that all might be streaming simultaneously - the more important test is to have a lot of things running and then see if it slows.