I believe Linux should be a "better" solution because it can be "bred" to answer specific needs. Windows is a much more universal platform.

Their goal might be similar but the course taken is different.

Windows was developed to be the "all in one solution, everybody can fit in". Thus it contains many many things that are irrelevant to music. I suspect you would have to "thin" it out very aggresively to overcome potential disasters from unwanted portions. I suspect Wersi did just that.

Linux might be a more suitable candidate, because in my mind it is far more modular and "low-level" and might provide a more stripped down and fat free platform as a base.