I doubt that, think of the amount of r&d they pour into arm for mobile. ARM will be their next platform for Macs.
Most programmers don't care whether a CPU has AVX512 support. Most programmers will use a library or an OS service that'll abstract that away and pick a certain code path appropriate to the running CPU.
I don't think a human being can get a full understanding of a modern x86 without major brain surgery that is not yet available.