I don’t know what its like in the US, but for the most part here in Australia, if you do a degree in any computer-related subjects, then the platform is PC based—unless and until you get out into the high end stuff. One place where I worked, we used a CRAY .. and that was a serious processor!
But, even most of the schools use PC stuff .. maybe because Bill Gates offers special licensing ..
But .. if everyone is trained on Windows PC’s then, its natural that the majority will stick with what they know
Dare I say it .. its almost as though Apple has a ‘cult’ following .. not that there’s anything wrong with that .. supported largely by the ‘aesthetic’ community of advertising and fashion (including web design) .. and a few authors ..
BTW .. who remembers the TRS “Trash” 80 or the Comodore 64?