Apple gets the credit for designing a bootloader that allows you to run a third party unsigned OS without degrading device security when you do boot into MacOS.

Applying the security settings per partition instead of per device is much more flexible, and you don't have to worry about Microsoft controlling which OS signing keys are valid.

It's uncharacteristic of them and better than nothing. But simply not blocking the installation of a 3rd party OS should be the bare minimum required by law. Ideally Apple would publish documentation on the hardware so it didn't have to be reverse engineered.

> designing a bootloader that allows you to run a third party unsigned OS

Oh thank you master for allowing me to boot a different OS!

Being allowed to run whatever OS you want on your device is a right, not something you should need permission for.

Does this mean the 1981 IBM PC gets the same praise? I mean you could install whatever you wanted on that thing.

Tell every game console maker.

For the sake of the argument, the topic here is running software on general computing devices, and most people don't put game consoles in that category. Also, according to my poor knowledge of game console history of past 30 years, game consoles never intend to run arbitrary software, unless you jailbreak the device which is obviously not allowed by ToS.

You are allowed and maybe have one option, what's the problem?

Apple doesn't deserve any credit for that. You should be able to use your hardware in any way you want without asking Apple for permission.

Although changes made since have left M3 and newer unsupported by the solution for the first two generations of their design.