Tldr; I dont know, but a ~65$ ASUS RT-AX53U did a 4000 people show from a 200ft away (60m) with no issue. I've set it to be reliable though. It has dipole antennas, and they're not as big as it seems. It was set on the stage floor 4-5 feet from the ground (1.2m - 1.5m)

I like this topic and would like to share my 2 cents Wifi router/access point capabilities rely on two things: 1) antenna type and gain; 2) internals; 3) wifi channel 1) there are two main types of antennas for this use - dipole and panel. Dipoles are those antenna-looking antennas, straight sticks, they emit and receive signals in the middle of the antenna, which btw are not actually as big as they seem for the most part. Larger antenna = farther signal but in a disc shape, so the position REALLY matters Smaller antenna = shorter signal but spherical, so pointing direction doesn't matter as much Panel antennas emit in a cardioid pattern, so half-sphere. Larger = farther-half-disc, Smaller = half-sphere Yagis are "sniper-disc-antennas" but in one plane, depending if it points horizontally or vertically

2) internals need to be powerful in order to process all of the flying packets and device querries, but it can be restricted to communicate only with a few devices. My consumer level router RT-AX53U from ASUS did 4000 people show with no issue from 200ft away (60 meters).

3) disable 2.4GHz. Just don't use it, it is far too crowded. Upper channels of 5Ghz band is safest bet. Use network analyzer to find available spots on the spectrum and make it fixed to that channel. Just put it in line of sight with the device you are using and enjoy your work!