It doesn't increase the number of macOS kernels, or decrease the number of Linux servers (including virtualized ones, which seems fair), so I doubt it tips the balance.
All I'm saying is that, because of servers, there are more GCC'ed Linux kernels than there are Clang'ed macOS kernels, and this will probably remain true indefinitely.
If AWS starts Clangin' on their Linux kernels, then maybe not. The trend toward Clang is pretty clear at this point; could happen.
Fair point. Google is close to shipping clang built Linux kernels in their data centers (usable VM images for external users already are), but Amazon and Microsoft both have very large clouds as well. I'd guess it's still way less than mobile devices, but I don't have a good sense for how the numbers compare in terms of number of devices in existence for mobile va cloud.