Comment by aurareturn

  My AMD Framework 13 running Fedora (an officially supported option: https://frame.work/linux ) also gets around that amount of battery life. And can run games surprisingly well.

Macs don't throttle when you unplug it. All AMD laptops do.

Even when plugged in, AMD laptops are quite a bit slower than Macs. When unplugged, it's not even close.