I'm surprised the article didn't tell how to run diagnostics on an M1 Mac:
Shut it down, hold the power button until you get a screen with some buttons, hold down Command-D until it brings up a diagnostics screen, and answer a couple questions (your language, run local, etc.). Then it takes a minute and posts results. And lastly you click Reboot.
Shut it down, hold the power button until you get a screen with some buttons, hold down Command-D until it brings up a diagnostics screen, and answer a couple questions (your language, run local, etc.). Then it takes a minute and posts results. And lastly you click Reboot.