I asked this same question on Reddit and I got zero engagement, so perhaps Lemmy has people that care more about their hardware.
I recently decided to use some of the tools provided by Mr Salter (netburn) and I have to ask the community if you want to see multi-client stress tests (4K streaming, VoIP, web browsing) used on a wireless router or if the single-client iperf tests are good enough. Bear in mind that pretty much all publications that still test their devices (most don’t) rely on the single-client test method.
It isn’t really about the maximum number of client devices, it’s what they do, what type of standard are they a part of, how far away, the interference (!). This is why it’s pretty much impossible to put a number and say: hey, this TP-Link router will handle 30 client devices, while this Asus router goes up to 100… In a sense, a multi-client stress test kind of addresses this issue, but it kind of doesn’t. It’s because it’s extremely dependent on the conditions that the tester has in their lab/office/home.
One thing to check on a review could be the attenuation as a better factor than the distance (this way, you can reproduce the result in your house even if just with a single-client test).