[eliasmacpherson]

On Rosetta 2, from the horses mouth:

Rosetta translates all x86_64 instructions, but it doesn't support the execution of some newer instruction sets and processor features, such as AVX, AVX2, and AVX512 vector instructions.

I can imagine quite a number of users running into the above situation in multimedia related code.

[afavour]

That’s still a small minority of all the apps out there, though.

[thereddaikon]

But we're talking about Macs. That's a huge chunk of their userbase. For the people who use Macs for actual work you can broadly classify them in two groups, Devs who need Xcode and media. Yes there are exceptions but that's the majority. For one of those groups AVX is pretty important.

[izacus]

And those apps had to be ready too. You don't build a reliable platform by randomly breaking "a small minority of apps". You yourself are certanly in "small minority" of at least a few features you rely on.