A good Wifi signal can do justice to any music, but wifi signals do go bad. I’m lucky enough to live in a detached home with excellent wall to wall signal coverage and no channel conflicts with my neighbors.
I don’t think anyone’s too worried about signal strength/drops when they have a 1gbps connection and hefty modems/routers these days...it’s the noise...
For example...
Call some hifi nerd on your cellphone.
Borrow wife’s phone and call another hifi nerd.
Set both active cellphones next to the wifi receiver of your hifi streaming device.
Sit back at your listening position and see how it goes...