How to use a shortcut to restart the new MacBook Pro?

Question

Control–Command–Media Eject: Quit all apps, then restart your Mac. If any open documents have unsaved changes, you will be asked whether you want to save them.

But the new MacBook Pro doesn't have the Eject key.

Answer 1

You can set your own key commands in system prefs
_{This will be probably a lot harder to find in Ventura:\}

There's one slight quirk, though with both Shutdown… & Restart…

As soon as you add a custom key command to either of them, an alternative command pops up underneath, without the ellipsis. You can't add a key command to these non ellipsis versions.

Answer 2

Using Karabiner-Elements, the following rule maps left_command+right_command+escape to restart macOS:

{
  "description": "Restart macOS",
  "manipulators": [
    {
      "from": {
        "key_code": "escape",
        "modifiers": {
          "mandatory": ["left_command", "right_command"]
        }
      },
      "to": [
        {
          "key_code": "eject",
          "modifiers": ["left_control", "left_command"]
        }
      ],
      "type": "basic"
    }
  ]
}