Big-ish (such as Adobe) and niche consumer software vendors have had no reason to support Linux and its paltry 2% usage share, and many reasons not to, including MS platform FUD and the legal understanding of FOSS licenses.
Apple has a reputation for supporting professionals, but this new lineup all but wipes that out. The hardware is too underwhelming to maintain the hype. Apple has finally reached the point where their obsession with aesthetic design is compromising their products' capabilities. Apple has fully abandoned "form follows function" in favor of "function follows form", and in doing so have put themselves on a path to failure.
System76 may have experienced a traffic spike, but unfortunately it won't last once all the disillusioned Apple users realize how spoiled they've been by OSX.