Is it pointless to use PC as NAS for a streamer?

The whole point of buying a streamer such as Lumin U1 Mini (which I am planning to get one because it has Audirvana support), is to avoid the noises of a computer.

But say if I use the computer to send the music over to the Lumin via Ethernet, would it still carry those noises and jitter that veteran audiophiles love to complain about?

Forgive me if that’s a stupid question, but I’m just much more used to playing music stored in my PC, it’s just the most convenient way by far.

My current set up: PC with Audirvana -> Denafrips Ares 2 DAC -> Cayin EL34 Amp -> Tuolihao Q12 Speakers