Most apps do not use Apple’s Accelerate framework.

What do you base this on? I use it in all my products and I don't see why any performance-sensitive dev outfit wouldn't at least consider using it.

Most dev outfits are not performance-sensitive

The the whole benchmark discussion becomes moot, doesn't it?

Benchmarking a processor for real-world usage is definitely something you can do.

Benchmarking a processor for "app written by someone who disregards performance" is something you can do, but it's a bit of a pointless exercise; no processor will ever keep up with developers ability to write slow code.

An important question people care about is "will my day to day computing improve with the new processor?".

Of course. And these are CPU vector instructions, so the saying "The wider the SIMD, the narrower the audience" applies.

But ultimately with a benchmark like Geekbench, you're trusting them to pick a weighting. Geekbench 6 is not any different in that regard to Geekbench 5 – it's not going to directly reflect every app you run.

I was really just pointing out that the idea that "no" apps use SME is wrong and therefore including it does not invalidate anything – it very well could speed up your apps, depending on what you use.