Similarly, Linux kernel developers have added support for asymmetric instruction availability in their schedulers through features like “CPU microcode updates”, which allow the OS to query a processor’s available instructions sets at runtime and make more informed decisions about thread placement as a result.

This is bullshit, the microcode is not in any way a mechanism to query any information. It’s an opaque blob provided by Intel and the system firmware. What’s happening with Alder Lake is that AVX-512 is disabled through microcode, but if you’re not Intel or a motherboard manufacturer, there is nothing you can do about that.

If your goal is to make AVX-512 usable on your computer, don’t bother with it. It will not magically make things go faster.

This is the correct answer. IPP Everywhere support is often advertised as AirPrint and sometimes as Mopria, which all means that it will work with CUPS without extra drivers.

In fact, with the upcoming version 3, CUPS will drop direct support for non-IPP printers.