I have an older Windows 2000 PC (Pentium 1 MMX era) and whenever it goes to shutdown it won't power off automatically. Instead it displays a "It is now safe to turn off your computer." screen.

When paired to your PS5, you can turn off the DualSense controller from the "Accessories" option in the Control Center. Hold the PlayStation button to turn off the controller when paired with your PC ...

Now the Presence Sensing feature is set successfully and it will wake your Windows 11 computer as per the settings configured by you. In case you need to turn off this setting later, use the steps ...