Laptop vs music server when streaming over WIFI

It is widely agreed that PC’s and laptops are sub-optimal sources. They have noisy power supplies, heavy OS’s running tons of background processes, and poorly implemented USB modules. A PC or laptop can spit out tons of EMI that can pollute the rest of the audio chain when connected directly to a DAC.
However, streaming over WIFI galvanically isolates the computer from the rest of the chain. So, would there be a perceived difference in sound quality in the following scenarios?

A) Laptop streaming over WIFI to network streamer
VS
B) Music server streaming over WIFI to network streamer