First of all, I am running a Roon Nucleus+ and I have zero problems with the software or hardware. I also don’t want a “full fledged more powerful machine. The Nucleus+ was purpose built to run Roon on Linux software in a very small fanless enclosure. There is not an audio card or a video card built on the motherboard. I’m glad I’m not running a Windows based server that is running two gabillion apps in the background.
I fully understand. You picked hardware that fully meets your needs.
In my case, I wanted to run HQP (including filters and DSP) and be able to upsample everything to DSD512. Nucleus can’t do that. I needed a computer with high computing capacity and a Windows PC was the only choice. By the way, I turned off programs/apps so that nothing that I don’t want is running in the background. So my windows machine is a dedicated music device (unless I want to make it a gaming machine with VR capabilities which it can be).