The Roon principals have never made improved SQ claims for either the Nucleus or ROCK.
Pretty sure if there was improvement, Roon would advertise those two products in that manner.
If your computer has the necessary specs to run Roon, then there should be no difference.
Depending on your library size, how many endpoints you have, are you doing any DSP, etc. then you may need more than the minimum specs, but that would be about responsiveness, not about SQ.
Thank you. That’s what I’m looking for I think. I don’t have a library, only streaming Tidal and maybe Qobuz later. I would like to put Roon Core on my work laptop and home desktop and wasn’t sure if there’s a potential for SQ differences.