Since the hardware will no longer get security updates for the firmware you should stop using it and move to a newer MacBook.
Linux doesn't solve the issue of not getting security updates anymore. For example the FCC does not allow letting users write arbitrary firmware they can run on their devices so this means you legally can't update the Bluetooth or Wifi firmware and need an update from Apple.
> Linux doesn't solve the issue of not getting security updates anymore. For example the FCC does not allow letting users write arbitrary firmware they can run on their devices so this means you legally can't update the Bluetooth or Wifi firmware and need an update from Apple.
My laptop has a wifi+bluetooth card that I can replace in 10 minutes. If and when that card is abandoned by its manufacturer (as Broadcom has done before), I can replace it with a better one.
i have no idea how you think apple silicon will discontinue support for itself.
the hypervisor framework documentation, that i linked above, is pretty clear; the linux builds for arm run extremely fast on apple silicon because hypervisor framework gives them hardware access, in some subsystems directly (memory mapping for example), in other systems through a shim (graphics hardware).
when apple discontinues support for older hardware, it doesn't get OS software updates. that doesn't disable the hardware from running the latest OS before OS updates for the hardware were ended. On the frozen-in-time OS, you'd still have a working instance of apple silicon hypervisor wrapping optimized drivers that make whatever linux arm build you're running still see the hardware.
Some people would like to keep running a system that’s connected to the internet that’s still receiving security updates. Running an outdated host isn’t the best idea.
