Another good read is about ARM's SVE2 extensions: https://gist.github.com/zingaburga/805669eb891c820bd220418ee...

It has some interesting conclusions, such as that it covers certain AVX512 gaps:

"AVX512 plugs many of the holes that SSE had, whilst SVE2 adds more complex operations (such as histogramming and bit permutation), and even introduces new ‘gaps’ (such as 32/64-bit element only COMPACT, no general vector byte left-shift, non-universal predication etc)."

And also that rusty x86 developers might face skill issues:

"Depending on your application, writing code for SVE2 can bring about new challenges. In particular, tailoring fixed-width problems and swizzling data around vectors may become much more difficult when the length is unknown."